2220123020121 has 32 divisors (see below), whose sum is σ = 3315433144320. Its totient is φ = 1468222377552.

The previous prime is 2220123020117. The next prime is 2220123020161. The reversal of 2220123020121 is 1210203210222.

It is not a de Polignac number, because 2220123020121 - 2² = 2220123020117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220123020094 and 2220123020103.

It is not an unprimeable number, because it can be changed into a prime (2220123020161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26783686 + ... + 26866448.

It is an arithmetic number, because the mean of its divisors is an integer number (103607285760).

Almost surely, 2^{2220123020121} is an apocalyptic number.

It is an amenable number.

2220123020121 is a deficient number, since it is larger than the sum of its proper divisors (1095310124199).

2220123020121 is a wasteful number, since it uses less digits than its factorization.

2220123020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90722 (or 90716 counting only the distinct ones).

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

Adding to 2220123020121 its reverse (1210203210222), we get a palindrome (3430326230343).

The spelling of 2220123020121 in words is "two trillion, two hundred twenty billion, one hundred twenty-three million, twenty thousand, one hundred twenty-one".