22227257009 has 2 divisors, whose sum is σ = 22227257010. Its totient is φ = 22227257008.

The previous prime is 22227256903. The next prime is 22227257081. The reversal of 22227257009 is 90075272222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11520802225 + 10706454784 = 107335^2 + 103472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22227257009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22227257099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113628504 + 11113628505.

It is an arithmetic number, because the mean of its divisors is an integer number (11113628505).

Almost surely, 2^22227257009 is an apocalyptic number.

It is an amenable number.

22227257009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22227257009 is an equidigital number, since it uses as much as digits as its factorization.

22227257009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 22227257009 in words is "twenty-two billion, two hundred twenty-seven million, two hundred fifty-seven thousand, nine".