1167222231 has 40 divisors (see below), whose sum is σ = 2097617280. Its totient is φ = 631873872.

The previous prime is 1167222191. The next prime is 1167222241. The reversal of 1167222231 is 1322227611.

It is not a de Polignac number, because 1167222231 - 2⁷ = 1167222103 is a prime.

It is a super-2 number, since 2×1167222231² = 2724815473081234722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1167222195 and 1167222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167222241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43401 + ... + 64946.

It is an arithmetic number, because the mean of its divisors is an integer number (52440432).

Almost surely, 2^1167222231 is an apocalyptic number.

1167222231 is a deficient number, since it is larger than the sum of its proper divisors (930395049).

1167222231 is a wasteful number, since it uses less digits than its factorization.

1167222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108385 (or 108376 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1167222231 is about 34164.6342143451. The cubic root of 1167222231 is about 1052.8936751923.

Adding to 1167222231 its reverse (1322227611), we get a palindrome (2489449842).

The spelling of 1167222231 in words is "one billion, one hundred sixty-seven million, two hundred twenty-two thousand, two hundred thirty-one".