2122320121 has 8 divisors (see below), whose sum is σ = 2234779200. Its totient is φ = 2009936880.

The previous prime is 2122320097. The next prime is 2122320139. The reversal of 2122320121 is 1210232212.

It is a happy number.

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 2122320121 - 2⁵ = 2122320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122320095 and 2122320104.

It is not an unprimeable number, because it can be changed into a prime (2122320821) 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, 43860 + ... + 78538.

It is an arithmetic number, because the mean of its divisors is an integer number (279347400).

Almost surely, 2^2122320121 is an apocalyptic number.

It is an amenable number.

2122320121 is a deficient number, since it is larger than the sum of its proper divisors (112459079).

2122320121 is a wasteful number, since it uses less digits than its factorization.

2122320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37919.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2122320121 is about 46068.6457474061. The cubic root of 2122320121 is about 1285.1001190747.

Adding to 2122320121 its reverse (1210232212), we get a palindrome (3332552333).

The spelling of 2122320121 in words is "two billion, one hundred twenty-two million, three hundred twenty thousand, one hundred twenty-one".