22069881 has 8 divisors (see below), whose sum is σ = 32696160. Its totient is φ = 14713236.

The previous prime is 22069877. The next prime is 22069909. The reversal of 22069881 is 18896022.

It is not a de Polignac number, because 22069881 - 2² = 22069877 is a prime.

It is a super-2 number, since 2×22069881² = 974159294708322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22069181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408675 + ... + 408728.

It is an arithmetic number, because the mean of its divisors is an integer number (4087020).

Almost surely, 2^22069881 is an apocalyptic number.

It is an amenable number.

22069881 is a deficient number, since it is larger than the sum of its proper divisors (10626279).

22069881 is an equidigital number, since it uses as much as digits as its factorization.

22069881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817412 (or 817406 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 22069881 is about 4697.8591932922. The cubic root of 22069881 is about 280.5003002656.

The spelling of 22069881 in words is "twenty-two million, sixty-nine thousand, eight hundred eighty-one".