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101212211201210 = 2510121221120121
BaseRepresentation
bin10111000000110101001101…
…111001010100010010111010
3111021100210102000112221012122
4113000311031321110102322
5101231230102031414320
6555132125315441242
730214224642301064
oct2700651571242272
9437323360487178
10101212211201210
112a28194869849a
12b4277308b6222
134462369571ca5
141adc9a9014734
15ba7b66548d25
hex5c0d4de544ba

101212211201210 has 8 divisors (see below), whose sum is σ = 182181980162196. Its totient is φ = 40484884480480.

The previous prime is 101212211201117. The next prime is 101212211201273. The reversal of 101212211201210 is 12102112212101.

It can be written as a sum of positive squares in 2 ways, for example, as 100922779037089 + 289432164121 = 10046033^2 + 537989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1012122112012102 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5060610560051 + ... + 5060610560070.

Almost surely, 2101212211201210 is an apocalyptic number.

101212211201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212211201210 is a deficient number, since it is larger than the sum of its proper divisors (80969768960986).

101212211201210 is a wasteful number, since it uses less digits than its factorization.

101212211201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121221120128.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101212211201210 its reverse (12102112212101), we get a palindrome (113314323413311).

The spelling of 101212211201210 in words is "one hundred one trillion, two hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 10121221120121 20242442240242 50606105600605 101212211201210