22201131 has 8 divisors (see below), whose sum is σ = 30323664. Its totient is φ = 14439680.

The previous prime is 22201129. The next prime is 22201159. The reversal of 22201131 is 13110222.

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 22201131 - 2¹ = 22201129 is a prime.

It is a super-2 number, since 2×22201131² = 985780435358322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22201111) 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, 90126 + ... + 90371.

It is an arithmetic number, because the mean of its divisors is an integer number (3790458).

Almost surely, 2^22201131 is an apocalyptic number.

22201131 is a deficient number, since it is larger than the sum of its proper divisors (8122533).

22201131 is a wasteful number, since it uses less digits than its factorization.

22201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180541.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22201131 is about 4711.8076149181. The cubic root of 22201131 is about 281.0552484841.

Adding to 22201131 its reverse (13110222), we get a palindrome (35311353).

Subtracting from 22201131 its reverse (13110222), we obtain a palindrome (9090909).

The spelling of 22201131 in words is "twenty-two million, two hundred one thousand, one hundred thirty-one".