22248240251 has 2 divisors, whose sum is σ = 22248240252. Its totient is φ = 22248240250.

The previous prime is 22248240227. The next prime is 22248240317. The reversal of 22248240251 is 15204284222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22248240251 is a prime.

It is not a weakly prime, because it can be changed into another prime (22248240151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11124120125 + 11124120126.

It is an arithmetic number, because the mean of its divisors is an integer number (11124120126).

Almost surely, 2^22248240251 is an apocalyptic number.

22248240251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22248240251 is an equidigital number, since it uses as much as digits as its factorization.

22248240251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20480, while the sum is 32.

The spelling of 22248240251 in words is "twenty-two billion, two hundred forty-eight million, two hundred forty thousand, two hundred fifty-one".