2122021331231 has 2 divisors, whose sum is σ = 2122021331232. Its totient is φ = 2122021331230.

The previous prime is 2122021331191. The next prime is 2122021331267. The reversal of 2122021331231 is 1321331202212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122021331231 - 2³⁴ = 2104841462047 is a prime.

It is a super-2 number, since 2×2122021331231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122021331197 and 2122021331206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122021631231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061010665615 + 1061010665616.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010665616).

Almost surely, 2^{2122021331231} is an apocalyptic number.

2122021331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122021331231 is an equidigital number, since it uses as much as digits as its factorization.

2122021331231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2122021331231 its reverse (1321331202212), we get a palindrome (3443352533443).

The spelling of 2122021331231 in words is "two trillion, one hundred twenty-two billion, twenty-one million, three hundred thirty-one thousand, two hundred thirty-one".