22011441251 has 2 divisors, whose sum is σ = 22011441252. Its totient is φ = 22011441250.

The previous prime is 22011441223. The next prime is 22011441253. The reversal of 22011441251 is 15214411022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22011441251 - 2⁶ = 22011441187 is a prime.

Together with 22011441253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22011441253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005720625 + 11005720626.

It is an arithmetic number, because the mean of its divisors is an integer number (11005720626).

Almost surely, 2^22011441251 is an apocalyptic number.

22011441251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011441251 is an equidigital number, since it uses as much as digits as its factorization.

22011441251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 22011441251 its reverse (15214411022), we get a palindrome (37225852273).

The spelling of 22011441251 in words is "twenty-two billion, eleven million, four hundred forty-one thousand, two hundred fifty-one".