22212113220 has 120 divisors (see below), whose sum is σ = 76014848448. Its totient is φ = 5384750400.

The previous prime is 22212113207. The next prime is 22212113221. The reversal of 22212113220 is 2231121222.

22212113220 is a `hidden beast` number, since 222 + 121 + 1 + 322 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22212113193 and 22212113202.

It is not an unprimeable number, because it can be changed into a prime (22212113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 605416 + ... + 641055.

Almost surely, 2^22212113220 is an apocalyptic number.

22212113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212113220 is an abundant number, since it is smaller than the sum of its proper divisors (53802735228).

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

22212113220 is a wasteful number, since it uses less digits than its factorization.

22212113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246503 (or 1246492 counting only the distinct ones).

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

Adding to 22212113220 its reverse (2231121222), we get a palindrome (24443234442).

The spelling of 22212113220 in words is "twenty-two billion, two hundred twelve million, one hundred thirteen thousand, two hundred twenty".