222231132 has 36 divisors (see below), whose sum is σ = 562334136. Its totient is φ = 74000160.

The previous prime is 222231109. The next prime is 222231137. The reversal of 222231132 is 231132222.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222231137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39903 + ... + 45129.

Almost surely, 2^222231132 is an apocalyptic number.

It is an amenable number.

222231132 is an abundant number, since it is smaller than the sum of its proper divisors (340103004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222231132 is a wasteful number, since it uses less digits than its factorization.

222231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418 (or 6413 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222231132 is about 14907.4186900348. The cubic root of 222231132 is about 605.7149592395.

Adding to 222231132 its reverse (231132222), we get a palindrome (453363354).

The spelling of 222231132 in words is "two hundred twenty-two million, two hundred thirty-one thousand, one hundred thirty-two".