20221102211212 has 24 divisors (see below), whose sum is σ = 40466909587104. Its totient is φ = 8660892698112.

The previous prime is 20221102211209. The next prime is 20221102211213. The reversal of 20221102211212 is 21211220112202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221102211212.

It is not an unprimeable number, because it can be changed into a prime (20221102211213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220535173 + ... + 220626844.

It is an arithmetic number, because the mean of its divisors is an integer number (1686121232796).

Almost surely, 2^{20221102211212} is an apocalyptic number.

It is an amenable number.

20221102211212 is an abundant number, since it is smaller than the sum of its proper divisors (20245807375892).

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

20221102211212 is a wasteful number, since it uses less digits than its factorization.

20221102211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441163665 (or 441163663 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20221102211212 its reverse (21211220112202), we get a palindrome (41432322323414).

The spelling of 20221102211212 in words is "twenty trillion, two hundred twenty-one billion, one hundred two million, two hundred eleven thousand, two hundred twelve".