20120111122 has 16 divisors (see below), whose sum is σ = 30946416480. Its totient is φ = 9807735168.

The previous prime is 20120111111. The next prime is 20120111149. The reversal of 20120111122 is 22111102102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760972 + ... + 786967.

It is an arithmetic number, because the mean of its divisors is an integer number (1934151030).

Almost surely, 2^20120111122 is an apocalyptic number.

20120111122 is a deficient number, since it is larger than the sum of its proper divisors (10826305358).

20120111122 is a wasteful number, since it uses less digits than its factorization.

20120111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548105.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20120111122 its reverse (22111102102), we get a palindrome (42231213224).

The spelling of 20120111122 in words is "twenty billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty-two".