2112012001220 has 96 divisors (see below), whose sum is σ = 5179405593600. Its totient is φ = 715251081600.

The previous prime is 2112012001171. The next prime is 2112012001303. The reversal of 2112012001220 is 221002102112.

It is a junction number, because it is equal to n+sod(n) for n = 2112012001195 and 2112012001204.

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, 4035296 + ... + 4528535.

It is an arithmetic number, because the mean of its divisors is an integer number (53952141600).

Almost surely, 2^{2112012001220} is an apocalyptic number.

2112012001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112012001220 is an abundant number, since it is smaller than the sum of its proper divisors (3067393592380).

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

2112012001220 is a wasteful number, since it uses less digits than its factorization.

2112012001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8563929 (or 8563927 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2112012001220 its reverse (221002102112), we get a palindrome (2333014103332).

The spelling of 2112012001220 in words is "two trillion, one hundred twelve billion, twelve million, one thousand, two hundred twenty".