2120122221013 has 4 divisors (see below), whose sum is σ = 2151765836320. Its totient is φ = 2088478605708.

The previous prime is 2120122220989. The next prime is 2120122221029. The reversal of 2120122221013 is 3101222210212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120122221013 - 2¹⁷ = 2120122089941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120122221043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15821807553 + ... + 15821807686.

It is an arithmetic number, because the mean of its divisors is an integer number (537941459080).

Almost surely, 2^{2120122221013} is an apocalyptic number.

It is an amenable number.

2120122221013 is a deficient number, since it is larger than the sum of its proper divisors (31643615307).

2120122221013 is an equidigital number, since it uses as much as digits as its factorization.

2120122221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31643615306.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2120122221013 its reverse (3101222210212), we get a palindrome (5221344431225).

The spelling of 2120122221013 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, thirteen".