12122021002220 has 24 divisors (see below), whose sum is σ = 26796046426800. Its totient is φ = 4593607958592.

The previous prime is 12122021002211. The next prime is 12122021002229. The reversal of 12122021002220 is 2220012022121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12122021002211) and next prime (12122021002229).

It is not an unprimeable number, because it can be changed into a prime (12122021002229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15950027255 + ... + 15950028014.

It is an arithmetic number, because the mean of its divisors is an integer number (1116501934450).

Almost surely, 2^{12122021002220} is an apocalyptic number.

12122021002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122021002220 is an abundant number, since it is smaller than the sum of its proper divisors (14674025424580).

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

12122021002220 is a wasteful number, since it uses less digits than its factorization.

12122021002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31900055297 (or 31900055295 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12122021002220 its reverse (2220012022121), we get a palindrome (14342033024341).

The spelling of 12122021002220 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, two thousand, two hundred twenty".