20222212831 has 2 divisors, whose sum is σ = 20222212832. Its totient is φ = 20222212830.

The previous prime is 20222212799. The next prime is 20222212859. The reversal of 20222212831 is 13821222202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20222212831 - 2⁵ = 20222212799 is a prime.

It is a super-2 number, since 2×20222212831² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20222212796 and 20222212805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222212931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111106415 + 10111106416.

It is an arithmetic number, because the mean of its divisors is an integer number (10111106416).

Almost surely, 2^20222212831 is an apocalyptic number.

20222212831 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222212831 is an equidigital number, since it uses as much as digits as its factorization.

20222212831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 20222212831 in words is "twenty billion, two hundred twenty-two million, two hundred twelve thousand, eight hundred thirty-one".