22212131202 has 40 divisors (see below), whose sum is σ = 49780311372. Its totient is φ = 7402752000.

The previous prime is 22212131197. The next prime is 22212131231. The reversal of 22212131202 is 20213121222.

It can be written as a sum of positive squares in 2 ways, for example, as 19533137121 + 2678994081 = 139761^2 + 51759^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1535202 + ... + 1549602.

Almost surely, 2^22212131202 is an apocalyptic number.

22212131202 is an abundant number, since it is smaller than the sum of its proper divisors (27568180170).

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

22212131202 is a wasteful number, since it uses less digits than its factorization.

22212131202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23936 (or 23927 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22212131202 its reverse (20213121222), we get a palindrome (42425252424).

The spelling of 22212131202 in words is "twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, two hundred two".