22213311181 has 2 divisors, whose sum is σ = 22213311182. Its totient is φ = 22213311180.

The previous prime is 22213311097. The next prime is 22213311199. The reversal of 22213311181 is 18111331222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12713690025 + 9499621156 = 112755^2 + 97466^2 .

It is a cyclic number.

It is not a de Polignac number, because 22213311181 - 2⁷ = 22213311053 is a prime.

It is a super-2 number, since 2×22213311181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22213311581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106655590 + 11106655591.

It is an arithmetic number, because the mean of its divisors is an integer number (11106655591).

Almost surely, 2^22213311181 is an apocalyptic number.

It is an amenable number.

22213311181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22213311181 is an equidigital number, since it uses as much as digits as its factorization.

22213311181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The spelling of 22213311181 in words is "twenty-two billion, two hundred thirteen million, three hundred eleven thousand, one hundred eighty-one".