22161086 has 4 divisors (see below), whose sum is σ = 33241632. Its totient is φ = 11080542.

The previous prime is 22161077. The next prime is 22161101. The reversal of 22161086 is 68016122.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22161086² = 982227465398792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5540270 + ... + 5540273.

It is an arithmetic number, because the mean of its divisors is an integer number (8310408).

Almost surely, 2^22161086 is an apocalyptic number.

22161086 is a deficient number, since it is larger than the sum of its proper divisors (11080546).

22161086 is a wasteful number, since it uses less digits than its factorization.

22161086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080545.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22161086 is about 4707.5562662596. The cubic root of 22161086 is about 280.8861635375.

The spelling of 22161086 in words is "twenty-two million, one hundred sixty-one thousand, eighty-six".