22202212021212 has 48 divisors (see below), whose sum is σ = 54857673384192. Its totient is φ = 6964745936640.

The previous prime is 22202212021201. The next prime is 22202212021261. The reversal of 22202212021212 is 21212021220222.

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, 2928114 + ... + 7278617.

It is an arithmetic number, because the mean of its divisors is an integer number (1142868195504).

Almost surely, 2^{22202212021212} is an apocalyptic number.

It is an amenable number.

22202212021212 is an abundant number, since it is smaller than the sum of its proper divisors (32655461362980).

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

22202212021212 is a wasteful number, since it uses less digits than its factorization.

22202212021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217418 (or 10217416 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22202212021212 its reverse (21212021220222), we get a palindrome (43414233241434).

The spelling of 22202212021212 in words is "twenty-two trillion, two hundred two billion, two hundred twelve million, twenty-one thousand, two hundred twelve".