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10121212102100 = 22521110984413779
BaseRepresentation
bin1001001101001000011101…
…0000001000010111010100
31022211120121200012000211012
42103102013100020113110
52311311220244231400
633305342021031352
72063143033251131
oct223220720102724
938746550160735
1010121212102100
113252422410410
121175685555558
135855704b3668
1426dc25435588
15128421524d35
hex934874085d4

10121212102100 has 72 divisors (see below), whose sum is σ = 24179483143200. Its totient is φ = 3646675209600.

The previous prime is 10121212102097. The next prime is 10121212102103. The reversal of 10121212102100 is 120121212101.

It is an interprime number because it is at equal distance from previous prime (10121212102097) and next prime (10121212102103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121212102103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42086990 + ... + 42326789.

Almost surely, 210121212102100 is an apocalyptic number.

10121212102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121212102100 is an abundant number, since it is smaller than the sum of its proper divisors (14058271041100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121212102100 is a wasteful number, since it uses less digits than its factorization.

10121212102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84413913 (or 84413906 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10121212102100 its reverse (120121212101), we get a palindrome (10241333314201).

The spelling of 10121212102100 in words is "ten trillion, one hundred twenty-one billion, two hundred twelve million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 109 110 218 220 275 436 545 550 1090 1100 1199 2180 2398 2725 4796 5450 5995 10900 11990 23980 29975 59950 119900 84413779 168827558 337655116 422068895 844137790 928551569 1688275580 1857103138 2110344475 3714206276 4220688950 4642757845 8441377900 9201101911 9285515690 18402203822 18571031380 23213789225 36804407644 46005509555 46427578450 92011019110 92855156900 101212121021 184022038220 202424242042 230027547775 404848484084 460055095550 506060605105 920110191100 1012121210210 2024242420420 2530303025525 5060606051050 10121212102100