20111102011122 has 32 divisors (see below), whose sum is σ = 41977118374272. Its totient is φ = 6411299985024.

The previous prime is 20111102011097. The next prime is 20111102011151. The reversal of 20111102011122 is 22111020111102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9680293 + ... + 11572824.

It is an arithmetic number, because the mean of its divisors is an integer number (1311784949196).

Almost surely, 2^{20111102011122} is an apocalyptic number.

20111102011122 is an abundant number, since it is smaller than the sum of its proper divisors (21866016363150).

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

20111102011122 is a wasteful number, since it uses less digits than its factorization.

20111102011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260002.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20111102011122 its reverse (22111020111102), we get a palindrome (42222122122224).

The spelling of 20111102011122 in words is "twenty trillion, one hundred eleven billion, one hundred two million, eleven thousand, one hundred twenty-two".