2002220123231 has 2 divisors, whose sum is σ = 2002220123232. Its totient is φ = 2002220123230.

The previous prime is 2002220123221. The next prime is 2002220123237. The reversal of 2002220123231 is 1323210222002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002220123231 - 2¹⁴ = 2002220106847 is a prime.

It is a super-2 number, since 2×2002220123231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002220123237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001110061615 + 1001110061616.

It is an arithmetic number, because the mean of its divisors is an integer number (1001110061616).

Almost surely, 2^{2002220123231} is an apocalyptic number.

2002220123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002220123231 is an equidigital number, since it uses as much as digits as its factorization.

2002220123231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2002220123231 its reverse (1323210222002), we get a palindrome (3325430345233).

The spelling of 2002220123231 in words is "two trillion, two billion, two hundred twenty million, one hundred twenty-three thousand, two hundred thirty-one".