120122111021 has 8 divisors (see below), whose sum is σ = 131048764704. Its totient is φ = 109196534320.

The previous prime is 120122111009. The next prime is 120122111023. The reversal of 120122111021 is 120111221021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120122111021 - 2¹⁴ = 120122094637 is a prime.

It is a super-2 number, since 2×120122111021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120122110987 and 120122111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122111023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26510 + ... + 490863.

It is an arithmetic number, because the mean of its divisors is an integer number (16381095588).

Almost surely, 2^120122111021 is an apocalyptic number.

120122111021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120122111021 is a deficient number, since it is larger than the sum of its proper divisors (10926653683).

120122111021 is a wasteful number, since it uses less digits than its factorization.

120122111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538491.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120122111021 its reverse (120111221021), we get a palindrome (240233332042).

Subtracting from 120122111021 its reverse (120111221021), we obtain a square (10890000 = 3300²).

The spelling of 120122111021 in words is "one hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, twenty-one".