22012122211209 has 12 divisors (see below), whose sum is σ = 34241078995396. Its totient is φ = 13545921360672.

The previous prime is 22012122211207. The next prime is 22012122211241. The reversal of 22012122211209 is 90211222121022.

22012122211209 is a `hidden beast` number, since 2 + 20 + 1 + 212 + 221 + 1 + 209 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2750091555600 + 19262030655609 = 1658340^2 + 4388853^2 .

It is not a de Polignac number, because 22012122211209 - 2¹ = 22012122211207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012122211207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94068898222 + ... + 94068898455.

Almost surely, 2^{22012122211209} is an apocalyptic number.

It is an amenable number.

22012122211209 is a deficient number, since it is larger than the sum of its proper divisors (12228956784187).

22012122211209 is a wasteful number, since it uses less digits than its factorization.

22012122211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188137796696 (or 188137796693 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 22012122211209 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, two hundred eleven thousand, two hundred nine".