22111020331 has 2 divisors, whose sum is σ = 22111020332. Its totient is φ = 22111020330.

The previous prime is 22111020329. The next prime is 22111020361. The reversal of 22111020331 is 13302011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111020331 - 2¹ = 22111020329 is a prime.

It is a super-2 number, since 2×22111020331² (a number of 21 digits) contains 22 as substring.

Together with 22111020329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22111020361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055510165 + 11055510166.

It is an arithmetic number, because the mean of its divisors is an integer number (11055510166).

Almost surely, 2^22111020331 is an apocalyptic number.

22111020331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111020331 is an equidigital number, since it uses as much as digits as its factorization.

22111020331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22111020331 its reverse (13302011122), we get a palindrome (35413031453).

The spelling of 22111020331 in words is "twenty-two billion, one hundred eleven million, twenty thousand, three hundred thirty-one".