2122021012220 has 24 divisors (see below), whose sum is σ = 4649993871264. Its totient is φ = 811903691456.

The previous prime is 2122021012207. The next prime is 2122021012283. The reversal of 2122021012220 is 222101202212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306544119 + ... + 2306545038.

It is an arithmetic number, because the mean of its divisors is an integer number (193749744636).

Almost surely, 2^{2122021012220} is an apocalyptic number.

2122021012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122021012220 is an abundant number, since it is smaller than the sum of its proper divisors (2527972859044).

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

2122021012220 is a wasteful number, since it uses less digits than its factorization.

2122021012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613089189 (or 4613089187 counting only the distinct ones).

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

Adding to 2122021012220 its reverse (222101202212), we get a palindrome (2344122214432).

The spelling of 2122021012220 in words is "two trillion, one hundred twenty-two billion, twenty-one million, twelve thousand, two hundred twenty".