22025251999 has 2 divisors, whose sum is σ = 22025252000. Its totient is φ = 22025251998.

The previous prime is 22025251981. The next prime is 22025252027. The reversal of 22025251999 is 99915252022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22025251999 is a prime.

It is a super-2 number, since 2×22025251999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22025252999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11012625999 + 11012626000.

It is an arithmetic number, because the mean of its divisors is an integer number (11012626000).

Almost surely, 2^22025251999 is an apocalyptic number.

22025251999 is a deficient number, since it is larger than the sum of its proper divisors (1).

22025251999 is an equidigital number, since it uses as much as digits as its factorization.

22025251999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 22025251999 in words is "twenty-two billion, twenty-five million, two hundred fifty-one thousand, nine hundred ninety-nine".