22155534241 has 2 divisors, whose sum is σ = 22155534242. Its totient is φ = 22155534240.

The previous prime is 22155534239. The next prime is 22155534253. The reversal of 22155534241 is 14243555122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15830672400 + 6324861841 = 125820^2 + 79529^2 .

It is a cyclic number.

It is not a de Polignac number, because 22155534241 - 2¹ = 22155534239 is a prime.

Together with 22155534239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22155534197 and 22155534206.

It is not a weakly prime, because it can be changed into another prime (22155534221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077767120 + 11077767121.

It is an arithmetic number, because the mean of its divisors is an integer number (11077767121).

Almost surely, 2^22155534241 is an apocalyptic number.

It is an amenable number.

22155534241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22155534241 is an equidigital number, since it uses as much as digits as its factorization.

22155534241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

The spelling of 22155534241 in words is "twenty-two billion, one hundred fifty-five million, five hundred thirty-four thousand, two hundred forty-one".