22888081 has 2 divisors, whose sum is σ = 22888082. Its totient is φ = 22888080.

The previous prime is 22888079. The next prime is 22888091. The reversal of 22888081 is 18088822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 467856 = 4735^2 + 684^2 .

It is a cyclic number.

It is not a de Polignac number, because 22888081 - 2¹ = 22888079 is a prime.

It is a super-2 number, since 2×22888081² = 1047728503725122, which contains 22 as substring.

Together with 22888079, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22888081.

It is not a weakly prime, because it can be changed into another prime (22888031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444040 + 11444041.

It is an arithmetic number, because the mean of its divisors is an integer number (11444041).

Almost surely, 2^22888081 is an apocalyptic number.

It is an amenable number.

22888081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22888081 is an equidigital number, since it uses as much as digits as its factorization.

22888081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 37.

The square root of 22888081 is about 4784.1489316283. The cubic root of 22888081 is about 283.9246684085.

The spelling of 22888081 in words is "twenty-two million, eight hundred eighty-eight thousand, eighty-one".