22012210020 has 96 divisors (see below), whose sum is σ = 62063164800. Its totient is φ = 5829166080.

The previous prime is 22012210019. The next prime is 22012210037. The reversal of 22012210020 is 2001221022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22012209978 and 22012210005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12955131 + ... + 12956829.

It is an arithmetic number, because the mean of its divisors is an integer number (646491300).

Almost surely, 2^22012210020 is an apocalyptic number.

22012210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012210020 is an abundant number, since it is smaller than the sum of its proper divisors (40050954780).

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

22012210020 is a wasteful number, since it uses less digits than its factorization.

22012210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22012210020 its reverse (2001221022), we get a palindrome (24013431042).

The spelling of 22012210020 in words is "twenty-two billion, twelve million, two hundred ten thousand, twenty".