835222872123 has 28 divisors (see below), whose sum is σ = 1252373652720. Its totient is φ = 556765359696.

The previous prime is 835222872119. The next prime is 835222872161. The reversal of 835222872123 is 321278222538.

835222872123 is a `hidden beast` number, since 8 + 3 + 522 + 2 + 87 + 21 + 23 = 666.

It is not a de Polignac number, because 835222872123 - 2² = 835222872119 is a prime.

It is a super-2 number, since 2×835222872123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (835222872023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9244693 + ... + 9334601.

Almost surely, 2^835222872123 is an apocalyptic number.

835222872123 is a deficient number, since it is larger than the sum of its proper divisors (417150780597).

835222872123 is an equidigital number, since it uses as much as digits as its factorization.

835222872123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102670 (or 102655 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 835222872123 in words is "eight hundred thirty-five billion, two hundred twenty-two million, eight hundred seventy-two thousand, one hundred twenty-three".