22213201272 has 16 divisors (see below), whose sum is σ = 55533003240. Its totient is φ = 7404400416.

The previous prime is 22213201271. The next prime is 22213201331. The reversal of 22213201272 is 27210231222.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 925550053 = 22213201272 / (2 + 2 + 2 + 1 + 3 + 2 + 0 + 1 + 2 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213201271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462775003 + ... + 462775050.

Almost surely, 2^22213201272 is an apocalyptic number.

It is an amenable number.

22213201272 is an abundant number, since it is smaller than the sum of its proper divisors (33319801968).

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

22213201272 is a wasteful number, since it uses less digits than its factorization.

22213201272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925550062 (or 925550058 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 22213201272 its reverse (27210231222), we get a palindrome (49423432494).

The spelling of 22213201272 in words is "twenty-two billion, two hundred thirteen million, two hundred one thousand, two hundred seventy-two".