2122331122021 has 4 divisors (see below), whose sum is σ = 2315270314944. Its totient is φ = 1929391929100.

The previous prime is 2122331121991. The next prime is 2122331122039. The reversal of 2122331122021 is 1202211332212.

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 2122331122021 - 2⁹ = 2122331121509 is a prime.

It is a super-2 number, since 2×2122331122021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122331121983 and 2122331122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122331122321) 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, 96469596445 + ... + 96469596466.

It is an arithmetic number, because the mean of its divisors is an integer number (578817578736).

Almost surely, 2^{2122331122021} is an apocalyptic number.

It is an amenable number.

2122331122021 is a deficient number, since it is larger than the sum of its proper divisors (192939192923).

2122331122021 is a wasteful number, since it uses less digits than its factorization.

2122331122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192939192922.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2122331122021 its reverse (1202211332212), we get a palindrome (3324542454233).

The spelling of 2122331122021 in words is "two trillion, one hundred twenty-two billion, three hundred thirty-one million, one hundred twenty-two thousand, twenty-one".