22012033391 has 2 divisors, whose sum is σ = 22012033392. Its totient is φ = 22012033390.

The previous prime is 22012033339. The next prime is 22012033397. The reversal of 22012033391 is 19333021022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012033391 is a prime.

It is a super-2 number, since 2×22012033391² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22012033391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012033397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006016695 + 11006016696.

It is an arithmetic number, because the mean of its divisors is an integer number (11006016696).

Almost surely, 2^22012033391 is an apocalyptic number.

22012033391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012033391 is an equidigital number, since it uses as much as digits as its factorization.

22012033391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 22012033391 in words is "twenty-two billion, twelve million, thirty-three thousand, three hundred ninety-one".