1122166831 has 4 divisors (see below), whose sum is σ = 1123185312. Its totient is φ = 1121148352.

The previous prime is 1122166823. The next prime is 1122166873. The reversal of 1122166831 is 1386612211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1386612211 = 487 ⋅2847253.

It is a cyclic number.

It is not a de Polignac number, because 1122166831 - 2³ = 1122166823 is a prime.

It is a super-2 number, since 2×1122166831² = 2518516793193165122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122166793 and 1122166802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122166231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507586 + ... + 509791.

It is an arithmetic number, because the mean of its divisors is an integer number (280796328).

Almost surely, 2^1122166831 is an apocalyptic number.

1122166831 is a deficient number, since it is larger than the sum of its proper divisors (1018481).

1122166831 is a wasteful number, since it uses less digits than its factorization.

1122166831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018480.

The product of its digits is 3456, while the sum is 31.

The square root of 1122166831 is about 33498.7586486425. The cubic root of 1122166831 is about 1039.1681066292.

The spelling of 1122166831 in words is "one billion, one hundred twenty-two million, one hundred sixty-six thousand, eight hundred thirty-one".