20120111102102 has 32 divisors (see below), whose sum is σ = 33706395423360. Its totient is φ = 8928335949120.

The previous prime is 20120111102099. The next prime is 20120111102107.

20120111102102 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120111102107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3450452 + ... + 7221207.

It is an arithmetic number, because the mean of its divisors is an integer number (1053324856980).

Almost surely, 2^{20120111102102} is an apocalyptic number.

20120111102102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120111102102 is a deficient number, since it is larger than the sum of its proper divisors (13586284321258).

20120111102102 is a wasteful number, since it uses less digits than its factorization.

20120111102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673708.

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

It can be divided in two parts, 2012011 and 1102102, that added together give a palindrome (3114113).

The spelling of 20120111102102 in words is "twenty trillion, one hundred twenty billion, one hundred eleven million, one hundred two thousand, one hundred two".