1167266121 has 64 divisors (see below), whose sum is σ = 2036459520. Its totient is φ = 578534400.

The previous prime is 1167266099. The next prime is 1167266183. The reversal of 1167266121 is 1216627611.

It is not a de Polignac number, because 1167266121 - 2⁷ = 1167265993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1167266021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248646 + ... + 253296.

It is an arithmetic number, because the mean of its divisors is an integer number (31819680).

Almost surely, 2^1167266121 is an apocalyptic number.

It is an amenable number.

1167266121 is a deficient number, since it is larger than the sum of its proper divisors (869193399).

1167266121 is a wasteful number, since it uses less digits than its factorization.

1167266121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its digits is 6048, while the sum is 33.

The square root of 1167266121 is about 34165.2765391999. The cubic root of 1167266121 is about 1052.9068720292.

The spelling of 1167266121 in words is "one billion, one hundred sixty-seven million, two hundred sixty-six thousand, one hundred twenty-one".