22122209947 has 2 divisors, whose sum is σ = 22122209948. Its totient is φ = 22122209946.

The previous prime is 22122209933. The next prime is 22122209953. The reversal of 22122209947 is 74990222122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22122209947 is a prime.

It is not a weakly prime, because it can be changed into another prime (22122209047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061104973 + 11061104974.

It is an arithmetic number, because the mean of its divisors is an integer number (11061104974).

Almost surely, 2^22122209947 is an apocalyptic number.

22122209947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122209947 is an equidigital number, since it uses as much as digits as its factorization.

22122209947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 22122209947 in words is "twenty-two billion, one hundred twenty-two million, two hundred nine thousand, nine hundred forty-seven".