120120111222021 has 64 divisors (see below), whose sum is σ = 190821173760000. Its totient is φ = 74411706071808.

The previous prime is 120120111221983. The next prime is 120120111222037. The reversal of 120120111222021 is 120222111021021.

It is not a de Polignac number, because 120120111222021 - 2²⁵ = 120120077667589 is a prime.

It is a super-2 number, since 2×120120111222021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120120111221985 and 120120111222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120111222091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56055700 + ... + 58159106.

It is an arithmetic number, because the mean of its divisors is an integer number (2981580840000).

Almost surely, 2^{120120111222021} is an apocalyptic number.

It is an amenable number.

120120111222021 is a deficient number, since it is larger than the sum of its proper divisors (70701062537979).

120120111222021 is a wasteful number, since it uses less digits than its factorization.

120120111222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105015 (or 2105009 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120120111222021 its reverse (120222111021021), we get a palindrome (240342222243042).

The spelling of 120120111222021 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred eleven million, two hundred twenty-two thousand, twenty-one".