22055610412181 has 2 divisors, whose sum is σ = 22055610412182. Its totient is φ = 22055610412180.

The previous prime is 22055610412079. The next prime is 22055610412193. The reversal of 22055610412181 is 18121401655022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18747427828900 + 3308182583281 = 4329830^2 + 1818841^2 .

It is a cyclic number.

It is not a de Polignac number, because 22055610412181 - 2²² = 22055606217877 is a prime.

It is a super-2 number, since 2×22055610412181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22055610442181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027805206090 + 11027805206091.

It is an arithmetic number, because the mean of its divisors is an integer number (11027805206091).

Almost surely, 2^{22055610412181} is an apocalyptic number.

It is an amenable number.

22055610412181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22055610412181 is an equidigital number, since it uses as much as digits as its factorization.

22055610412181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 22055610412181 in words is "twenty-two trillion, fifty-five billion, six hundred ten million, four hundred twelve thousand, one hundred eighty-one".