231134222 has 32 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 100085920.

The previous prime is 231134161. The next prime is 231134243. The reversal of 231134222 is 222431132.

231134222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231134194 and 231134203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147479 + ... + 149037.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^231134222 is an apocalyptic number.

231134222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231134222 is a deficient number, since it is larger than the sum of its proper divisors (165130738).

231134222 is a wasteful number, since it uses less digits than its factorization.

231134222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888.

The product of its digits is 576, while the sum is 20.

The square root of 231134222 is about 15203.0990919615. The cubic root of 231134222 is about 613.6980605427.

Adding to 231134222 its reverse (222431132), we get a palindrome (453565354).

The spelling of 231134222 in words is "two hundred thirty-one million, one hundred thirty-four thousand, two hundred twenty-two".