20101210101102 has 64 divisors (see below), whose sum is σ = 43680355951680. Its totient is φ = 6129930369024.

The previous prime is 20101210101073. The next prime is 20101210101109. The reversal of 20101210101102 is 20110101210102.

It is a super-2 number, since 2×20101210101102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101210101109) by changing a digit.

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, 208217748 + ... + 208314264.

It is an arithmetic number, because the mean of its divisors is an integer number (682505561745).

Almost surely, 2^{20101210101102} is an apocalyptic number.

20101210101102 is an abundant number, since it is smaller than the sum of its proper divisors (23579145850578).

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

20101210101102 is a wasteful number, since it uses less digits than its factorization.

20101210101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120277.

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

Adding to 20101210101102 its reverse (20110101210102), we get a palindrome (40211311311204).

The spelling of 20101210101102 in words is "twenty trillion, one hundred one billion, two hundred ten million, one hundred one thousand, one hundred two".