22226978771 has 2 divisors, whose sum is σ = 22226978772. Its totient is φ = 22226978770.

The previous prime is 22226978737. The next prime is 22226978783. The reversal of 22226978771 is 17787962222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22226978771 is a prime.

It is not a weakly prime, because it can be changed into another prime (22226978731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113489385 + 11113489386.

It is an arithmetic number, because the mean of its divisors is an integer number (11113489386).

Almost surely, 2^22226978771 is an apocalyptic number.

22226978771 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226978771 is an equidigital number, since it uses as much as digits as its factorization.

22226978771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 53.

The spelling of 22226978771 in words is "twenty-two billion, two hundred twenty-six million, nine hundred seventy-eight thousand, seven hundred seventy-one".