22121132211 has 32 divisors (see below), whose sum is σ = 34535600640. Its totient is φ = 13966524000.

The previous prime is 22121132153. The next prime is 22121132213. The reversal of 22121132211 is 11223112122.

It is not a de Polignac number, because 22121132211 - 2⁷ = 22121132083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121132213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113625 + ... + 239066.

It is an arithmetic number, because the mean of its divisors is an integer number (1079237520).

Almost surely, 2^22121132211 is an apocalyptic number.

22121132211 is a deficient number, since it is larger than the sum of its proper divisors (12414468429).

22121132211 is a wasteful number, since it uses less digits than its factorization.

22121132211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352824 (or 352818 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 22121132211 its reverse (11223112122), we get a palindrome (33344244333).

The spelling of 22121132211 in words is "twenty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred eleven".