22277089481 has 2 divisors, whose sum is σ = 22277089482. Its totient is φ = 22277089480.

The previous prime is 22277089441. The next prime is 22277089511. The reversal of 22277089481 is 18498077222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21753595081 + 523494400 = 147491^2 + 22880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22277089481 is a prime.

It is a super-2 number, since 2×22277089481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22277089411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11138544740 + 11138544741.

It is an arithmetic number, because the mean of its divisors is an integer number (11138544741).

Almost surely, 2^22277089481 is an apocalyptic number.

It is an amenable number.

22277089481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22277089481 is an equidigital number, since it uses as much as digits as its factorization.

22277089481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 22277089481 in words is "twenty-two billion, two hundred seventy-seven million, eighty-nine thousand, four hundred eighty-one".