20111113022 has 96 divisors (see below), whose sum is σ = 41844055680. Its totient is φ = 7124483520.

The previous prime is 20111113019. The next prime is 20111113051. The reversal of 20111113022 is 22031111102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20111112988 and 20111113006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 928229 + ... + 949647.

It is an arithmetic number, because the mean of its divisors is an integer number (435875580).

Almost surely, 2^20111113022 is an apocalyptic number.

20111113022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20111113022 is an abundant number, since it is smaller than the sum of its proper divisors (21732942658).

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

20111113022 is a wasteful number, since it uses less digits than its factorization.

20111113022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526 (or 21519 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20111113022 its reverse (22031111102), we get a palindrome (42142224124).

The spelling of 20111113022 in words is "twenty billion, one hundred eleven million, one hundred thirteen thousand, twenty-two".