22220488457 has 2 divisors, whose sum is σ = 22220488458. Its totient is φ = 22220488456.

The previous prime is 22220488363. The next prime is 22220488501. The reversal of 22220488457 is 75488402222.

It is an a-pointer prime, because the next prime (22220488501) can be obtained adding 22220488457 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12700388416 + 9520100041 = 112696^2 + 97571^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220488457 - 2²⁰ = 22219439881 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220488957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110244228 + 11110244229.

It is an arithmetic number, because the mean of its divisors is an integer number (11110244229).

Almost surely, 2^22220488457 is an apocalyptic number.

It is an amenable number.

22220488457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220488457 is an equidigital number, since it uses as much as digits as its factorization.

22220488457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 573440, while the sum is 44.

The spelling of 22220488457 in words is "twenty-two billion, two hundred twenty million, four hundred eighty-eight thousand, four hundred fifty-seven".