22212479277 has 24 divisors (see below), whose sum is σ = 32462258400. Its totient is φ = 14635077408.

The previous prime is 22212479243. The next prime is 22212479309. The reversal of 22212479277 is 77297421222.

It is not a de Polignac number, because 22212479277 - 2⁶ = 22212479213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212471277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220299 + ... + 304887.

It is an arithmetic number, because the mean of its divisors is an integer number (1352594100).

Almost surely, 2^22212479277 is an apocalyptic number.

It is an amenable number.

22212479277 is a deficient number, since it is larger than the sum of its proper divisors (10249779123).

22212479277 is a wasteful number, since it uses less digits than its factorization.

22212479277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84937 (or 84934 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

It can be divided in two parts, 222124 and 79277, that added together give a square (301401 = 549²).

The spelling of 22212479277 in words is "twenty-two billion, two hundred twelve million, four hundred seventy-nine thousand, two hundred seventy-seven".