22020211231212 has 96 divisors (see below), whose sum is σ = 52305332961280. Its totient is φ = 7208981881920.

The previous prime is 22020211231201. The next prime is 22020211231243. The reversal of 22020211231212 is 21213211202022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272882223 + ... + 272962905.

Almost surely, 2^{22020211231212} is an apocalyptic number.

It is an amenable number.

22020211231212 is an abundant number, since it is smaller than the sum of its proper divisors (30285121730068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020211231212 is a wasteful number, since it uses less digits than its factorization.

22020211231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82283 (or 82281 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22020211231212 its reverse (21213211202022), we get a palindrome (43233422433234).

The spelling of 22020211231212 in words is "twenty-two trillion, twenty billion, two hundred eleven million, two hundred thirty-one thousand, two hundred twelve".