2120221122012 has 72 divisors (see below), whose sum is σ = 6391391225856. Its totient is φ = 579439311264.

The previous prime is 2120221122001. The next prime is 2120221122073. The reversal of 2120221122012 is 2102211220212.

It is a happy number.

2120221122012 is a `hidden beast` number, since 21 + 202 + 211 + 220 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182898028 + ... + 182909619.

Almost surely, 2^{2120221122012} is an apocalyptic number.

It is an amenable number.

2120221122012 is an abundant number, since it is smaller than the sum of its proper divisors (4271170103844).

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

2120221122012 is a wasteful number, since it uses less digits than its factorization.

2120221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365807687 (or 365807682 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2120221122012 its reverse (2102211220212), we get a palindrome (4222432342224).

The spelling of 2120221122012 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".