22020120012 has 48 divisors (see below), whose sum is σ = 57859329024. Its totient is φ = 6457512000.

The previous prime is 22020119993. The next prime is 22020120061. The reversal of 22020120012 is 21002102022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22020120012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2686539 + ... + 2694722.

It is an arithmetic number, because the mean of its divisors is an integer number (1205402688).

Almost surely, 2^22020120012 is an apocalyptic number.

22020120012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22020120012 is an abundant number, since it is smaller than the sum of its proper divisors (35839209012).

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

22020120012 is a wasteful number, since it uses less digits than its factorization.

22020120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381310 (or 5381308 counting only the distinct ones).

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

Adding to 22020120012 its reverse (21002102022), we get a palindrome (43022222034).

The spelling of 22020120012 in words is "twenty-two billion, twenty million, one hundred twenty thousand, twelve".