2120220013122 has 24 divisors (see below), whose sum is σ = 4593836850876. Its totient is φ = 706735877856.

The previous prime is 2120220013097. The next prime is 2120220013211. The reversal of 2120220013122 is 2213100220212.

It can be written as a sum of positive squares in 2 ways, for example, as 1754244621441 + 365975391681 = 1324479^2 + 604959^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2120220013095 and 2120220013104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5620468 + ... + 5985824.

Almost surely, 2^{2120220013122} is an apocalyptic number.

2120220013122 is an abundant number, since it is smaller than the sum of its proper divisors (2473616837754).

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

2120220013122 is a wasteful number, since it uses less digits than its factorization.

2120220013122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687762 (or 687759 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2120220013122 its reverse (2213100220212), we get a palindrome (4333320233334).

The spelling of 2120220013122 in words is "two trillion, one hundred twenty billion, two hundred twenty million, thirteen thousand, one hundred twenty-two".