202212220221012 has 24 divisors (see below), whose sum is σ = 477801026684800. Its totient is φ = 66550857287616.

The previous prime is 202212220220981. The next prime is 202212220221041. The reversal of 202212220221012 is 210122022212202.

It is a super-2 number, since 2×202212220221012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202212220221012.

It is a congruent number.

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, 106652013937 + ... + 106652015832.

Almost surely, 2^{202212220221012} is an apocalyptic number.

It is an amenable number.

202212220221012 is an abundant number, since it is smaller than the sum of its proper divisors (275588806463788).

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

202212220221012 is a wasteful number, since it uses less digits than its factorization.

202212220221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213304029855 (or 213304029853 counting only the distinct ones).

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

Adding to 202212220221012 its reverse (210122022212202), we get a palindrome (412334242433214).

The spelling of 202212220221012 in words is "two hundred two trillion, two hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, twelve".