20202122211212 has 24 divisors (see below), whose sum is σ = 36499503344640. Its totient is φ = 9773788168080.

The previous prime is 20202122211211. The next prime is 20202122211217. The reversal of 20202122211212 is 21211222120202.

It is not an unprimeable number, because it can be changed into a prime (20202122211211) 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, 11085512 + ... + 12778607.

It is an arithmetic number, because the mean of its divisors is an integer number (1520812639360).

Almost surely, 2^{20202122211212} is an apocalyptic number.

It is an amenable number.

20202122211212 is a deficient number, since it is larger than the sum of its proper divisors (16297381133428).

20202122211212 is a wasteful number, since it uses less digits than its factorization.

20202122211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870981 (or 23870979 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20202122211212 its reverse (21211222120202), we get a palindrome (41413344331414).

The spelling of 20202122211212 in words is "twenty trillion, two hundred two billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".