2120120011220 has 24 divisors (see below), whose sum is σ = 4555792770144. Its totient is φ = 828325957536.

The previous prime is 2120120011169. The next prime is 2120120011249. The reversal of 2120120011220 is 221100210212.

It is a junction number, because it is equal to n+sod(n) for n = 2120120011195 and 2120120011204.

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, 1232627054 + ... + 1232628773.

It is an arithmetic number, because the mean of its divisors is an integer number (189824698756).

Almost surely, 2^{2120120011220} is an apocalyptic number.

2120120011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120120011220 is an abundant number, since it is smaller than the sum of its proper divisors (2435672758924).

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

2120120011220 is a wasteful number, since it uses less digits than its factorization.

2120120011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465255879 (or 2465255877 counting only the distinct ones).

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

Adding to 2120120011220 its reverse (221100210212), we get a palindrome (2341220221432).

The spelling of 2120120011220 in words is "two trillion, one hundred twenty billion, one hundred twenty million, eleven thousand, two hundred twenty".