22054747181 has 2 divisors, whose sum is σ = 22054747182. Its totient is φ = 22054747180.

The previous prime is 22054747157. The next prime is 22054747189. The reversal of 22054747181 is 18174745022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13894515625 + 8160231556 = 117875^2 + 90334^2 .

It is a cyclic number.

It is not a de Polignac number, because 22054747181 - 2²⁶ = 21987638317 is a prime.

It is a super-2 number, since 2×22054747181² (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 (22054747189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027373590 + 11027373591.

It is an arithmetic number, because the mean of its divisors is an integer number (11027373591).

Almost surely, 2^22054747181 is an apocalyptic number.

It is an amenable number.

22054747181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22054747181 is an equidigital number, since it uses as much as digits as its factorization.

22054747181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 22054747181 in words is "twenty-two billion, fifty-four million, seven hundred forty-seven thousand, one hundred eighty-one".