22025106391 has 2 divisors, whose sum is σ = 22025106392. Its totient is φ = 22025106390.

The previous prime is 22025106353. The next prime is 22025106419. The reversal of 22025106391 is 19360152022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22025106391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22025106991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11012553195 + 11012553196.

It is an arithmetic number, because the mean of its divisors is an integer number (11012553196).

Almost surely, 2^22025106391 is an apocalyptic number.

22025106391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22025106391 is an equidigital number, since it uses as much as digits as its factorization.

22025106391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 22025106391 in words is "twenty-two billion, twenty-five million, one hundred six thousand, three hundred ninety-one".