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10101010221012 = 22359611312576947
BaseRepresentation
bin1001001011111101001100…
…1000000100011111010100
31022202122110202210010210010
42102333103020010133110
52310443332104033022
633252201240400220
72061526310143464
oct222772310043724
938678422703703
1010101010221012
1132448a5a34117
121171787a76070
135836a1043479
1426cc6a3dbba4
15127b3cbcc50c
hex92fd32047d4

10101010221012 has 192 divisors, whose sum is σ = 24646452526080. Its totient is φ = 3217787289600.

The previous prime is 10101010221011. The next prime is 10101010221023. The reversal of 10101010221012 is 21012201010101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101010221011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1454006923 + ... + 1454013869.

It is an arithmetic number, because the mean of its divisors is an integer number (128366940240).

Almost surely, 210101010221012 is an apocalyptic number.

10101010221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10101010221012 is an abundant number, since it is smaller than the sum of its proper divisors (14545442305068).

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

10101010221012 is a wasteful number, since it uses less digits than its factorization.

10101010221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462 (or 7460 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10101010221012 its reverse (21012201010101), we get a palindrome (31113211231113).

The spelling of 10101010221012 in words is "ten trillion, one hundred one billion, ten million, two hundred twenty-one thousand, twelve".