20112111122 has 16 divisors (see below), whose sum is σ = 31483950912. Its totient is φ = 9617575440.

The previous prime is 20112111109. The next prime is 20112111157. The reversal of 20112111122 is 22111121102.

It is a junction number, because it is equal to n+sod(n) for n = 20112111097 and 20112111106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392972 + ... + 441192.

It is an arithmetic number, because the mean of its divisors is an integer number (1967746932).

Almost surely, 2^20112111122 is an apocalyptic number.

20112111122 is a deficient number, since it is larger than the sum of its proper divisors (11371839790).

20112111122 is a wasteful number, since it uses less digits than its factorization.

20112111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57313.

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

Adding to 20112111122 its reverse (22111121102), we get a palindrome (42223232224).

The spelling of 20112111122 in words is "twenty billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-two".