2122230223021 has 4 divisors (see below), whose sum is σ = 2144108885212. Its totient is φ = 2100351560832.

The previous prime is 2122230222979. The next prime is 2122230223033. The reversal of 2122230223021 is 1203220322212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1357061904900 + 765168318121 = 1164930^2 + 874739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122230223021 - 2²³ = 2122221834413 is a prime.

It is a super-2 number, since 2×2122230223021² (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 = 2122230222983 and 2122230223001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122230227021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10939330950 + ... + 10939331143.

It is an arithmetic number, because the mean of its divisors is an integer number (536027221303).

Almost surely, 2^{2122230223021} is an apocalyptic number.

It is an amenable number.

2122230223021 is a deficient number, since it is larger than the sum of its proper divisors (21878662191).

2122230223021 is an equidigital number, since it uses as much as digits as its factorization.

2122230223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21878662190.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2122230223021 its reverse (1203220322212), we get a palindrome (3325450545233).

The spelling of 2122230223021 in words is "two trillion, one hundred twenty-two billion, two hundred thirty million, two hundred twenty-three thousand, twenty-one".