22012210220020 has 48 divisors (see below), whose sum is σ = 47718571557888. Its totient is φ = 8520537646080.

The previous prime is 22012210219969. The next prime is 22012210220027. The reversal of 22012210220020 is 2002201221022.

It is a junction number, because it is equal to n+sod(n) for n = 22012210219976 and 22012210220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012210220027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16318884 + ... + 17616196.

It is an arithmetic number, because the mean of its divisors is an integer number (994136907456).

Almost surely, 2^{22012210220020} is an apocalyptic number.

22012210220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012210220020 is an abundant number, since it is smaller than the sum of its proper divisors (25706361337868).

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

22012210220020 is a wasteful number, since it uses less digits than its factorization.

22012210220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324720 (or 1324718 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22012210220020 its reverse (2002201221022), we get a palindrome (24014411441042).

The spelling of 22012210220020 in words is "twenty-two trillion, twelve billion, two hundred ten million, two hundred twenty thousand, twenty".