22012122112011 has 6 divisors (see below), whose sum is σ = 31795287495140. Its totient is φ = 14674748074668.

The previous prime is 22012122111979. The next prime is 22012122112027. The reversal of 22012122112011 is 11021122121022.

22012122112011 is a `hidden beast` number, since 220 + 1 + 21 + 221 + 1 + 201 + 1 = 666.

It is not a de Polignac number, because 22012122112011 - 2⁵ = 22012122111979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012122112091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222895672881 + ... + 1222895672898.

Almost surely, 2^{22012122112011} is an apocalyptic number.

22012122112011 is a deficient number, since it is larger than the sum of its proper divisors (9783165383129).

22012122112011 is a wasteful number, since it uses less digits than its factorization.

22012122112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445791345785 (or 2445791345782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22012122112011 its reverse (11021122121022), we get a palindrome (33033244233033).

The spelling of 22012122112011 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, eleven".