20100122012102 has 64 divisors (see below), whose sum is σ = 33698626815744. Its totient is φ = 8914170944640.

The previous prime is 20100122012099. The next prime is 20100122012111. The reversal of 20100122012102 is 20121022100102.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 150849953 + ... + 150983139.

It is an arithmetic number, because the mean of its divisors is an integer number (526541043996).

Almost surely, 2^{20100122012102} is an apocalyptic number.

20100122012102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20100122012102 is a deficient number, since it is larger than the sum of its proper divisors (13598504803642).

20100122012102 is a wasteful number, since it uses less digits than its factorization.

20100122012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133973.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20100122012102 its reverse (20121022100102), we get a palindrome (40221144112204).

The spelling of 20100122012102 in words is "twenty trillion, one hundred billion, one hundred twenty-two million, twelve thousand, one hundred two".