22412181 has 8 divisors (see below), whose sum is σ = 32599584. Its totient is φ = 13583120.

The previous prime is 22412179. The next prime is 22412183. The reversal of 22412181 is 18121422.

It is an interprime number because it is at equal distance from previous prime (22412179) and next prime (22412183).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22412181 - 2¹ = 22412179 is a prime.

It is a super-2 number, since 2×22412181² = 1004611714353522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22412183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339546 + ... + 339611.

It is an arithmetic number, because the mean of its divisors is an integer number (4074948).

Almost surely, 2^22412181 is an apocalyptic number.

It is an amenable number.

22412181 is a deficient number, since it is larger than the sum of its proper divisors (10187403).

22412181 is a wasteful number, since it uses less digits than its factorization.

22412181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679171.

The product of its digits is 256, while the sum is 21.

The square root of 22412181 is about 4734.1505045784. The cubic root of 22412181 is about 281.9430371339.

The spelling of 22412181 in words is "twenty-two million, four hundred twelve thousand, one hundred eighty-one".