20111201121122 has 32 divisors (see below), whose sum is σ = 31865199759360. Its totient is φ = 9504593274960.

The previous prime is 20111201121119. The next prime is 20111201121133. The reversal of 20111201121122 is 22112110211102.

It is a self number, because there is not a number n which added to its sum of digits gives 20111201121122.

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, 89366579 + ... + 89591337.

It is an arithmetic number, because the mean of its divisors is an integer number (995787492480).

Almost surely, 2^{20111201121122} is an apocalyptic number.

20111201121122 is a deficient number, since it is larger than the sum of its proper divisors (11753998638238).

20111201121122 is a wasteful number, since it uses less digits than its factorization.

20111201121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258398.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20111201121122 its reverse (22112110211102), we get a palindrome (42223311332224).

The spelling of 20111201121122 in words is "twenty trillion, one hundred eleven billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-two".