22021211211222 has 32 divisors (see below), whose sum is σ = 46665380938752. Its totient is φ = 6903840795264.

The previous prime is 22021211211191. The next prime is 22021211211253. The reversal of 22021211211222 is 22211211212022.

It is an interprime number because it is at equal distance from previous prime (22021211211191) and next prime (22021211211253).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74453038 + ... + 74748225.

It is an arithmetic number, because the mean of its divisors is an integer number (1458293154336).

Almost surely, 2^{22021211211222} is an apocalyptic number.

22021211211222 is an abundant number, since it is smaller than the sum of its proper divisors (24644169727530).

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

22021211211222 is a wasteful number, since it uses less digits than its factorization.

22021211211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149202732.

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

Adding to 22021211211222 its reverse (22211211212022), we get a palindrome (44232422423244).

The spelling of 22021211211222 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty-two".