202221112031 has 2 divisors, whose sum is σ = 202221112032. Its totient is φ = 202221112030.

The previous prime is 202221111949. The next prime is 202221112033. The reversal of 202221112031 is 130211122202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221112031 is a prime.

It is a super-2 number, since 2×202221112031² (a number of 23 digits) contains 22 as substring.

Together with 202221112033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202221112033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110556015 + 101110556016.

It is an arithmetic number, because the mean of its divisors is an integer number (101110556016).

Almost surely, 2^202221112031 is an apocalyptic number.

202221112031 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221112031 is an equidigital number, since it uses as much as digits as its factorization.

202221112031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 202221112031 its reverse (130211122202), we get a palindrome (332432234233).

The spelling of 202221112031 in words is "two hundred two billion, two hundred twenty-one million, one hundred twelve thousand, thirty-one".