22199864251 has 2 divisors, whose sum is σ = 22199864252. Its totient is φ = 22199864250.

The previous prime is 22199864231. The next prime is 22199864317. The reversal of 22199864251 is 15246899122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22199864251 - 2¹⁵ = 22199831483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22199864195 and 22199864204.

It is not a weakly prime, because it can be changed into another prime (22199864231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099932125 + 11099932126.

It is an arithmetic number, because the mean of its divisors is an integer number (11099932126).

Almost surely, 2^22199864251 is an apocalyptic number.

22199864251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22199864251 is an equidigital number, since it uses as much as digits as its factorization.

22199864251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 49.

The spelling of 22199864251 in words is "twenty-two billion, one hundred ninety-nine million, eight hundred sixty-four thousand, two hundred fifty-one".