22012310220 has 48 divisors (see below), whose sum is σ = 63759800160. Its totient is φ = 5667536896.

The previous prime is 22012310207. The next prime is 22012310233. The reversal of 22012310220 is 2201321022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22012310207) and next prime (22012310233).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22012310220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6323637 + ... + 6327116.

It is an arithmetic number, because the mean of its divisors is an integer number (1328329170).

Almost surely, 2^22012310220 is an apocalyptic number.

22012310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012310220 is an abundant number, since it is smaller than the sum of its proper divisors (41747489940).

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

22012310220 is a wasteful number, since it uses less digits than its factorization.

22012310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12650794 (or 12650792 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22012310220 its reverse (2201321022), we get a palindrome (24213631242).

The spelling of 22012310220 in words is "twenty-two billion, twelve million, three hundred ten thousand, two hundred twenty".