22022211211212 has 24 divisors (see below), whose sum is σ = 51385246441200. Its totient is φ = 7340724649216.

The previous prime is 22022211211193. The next prime is 22022211211229. The reversal of 22022211211212 is 21211211222022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372464 + ... + 10683752.

It is an arithmetic number, because the mean of its divisors is an integer number (2141051935050).

Almost surely, 2^{22022211211212} is an apocalyptic number.

It is an amenable number.

22022211211212 is an abundant number, since it is smaller than the sum of its proper divisors (29363035229988).

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

22022211211212 is a wasteful number, since it uses less digits than its factorization.

22022211211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105305 (or 3105303 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22022211211212 its reverse (21211211222022), we get a palindrome (43233422433234).

The spelling of 22022211211212 in words is "twenty-two trillion, twenty-two billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".