16111277122 has 8 divisors (see below), whose sum is σ = 24168384972. Its totient is φ = 8055148800.

The previous prime is 16111277113. The next prime is 16111277197. The reversal of 16111277122 is 22177211161.

It can be written as a sum of positive squares in 2 ways, for example, as 15946385841 + 164891281 = 126279^2 + 12841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202279 + ... + 270442.

Almost surely, 2^16111277122 is an apocalyptic number.

16111277122 is a deficient number, since it is larger than the sum of its proper divisors (8057107850).

16111277122 is a wasteful number, since it uses less digits than its factorization.

16111277122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489764.

The product of its digits is 2352, while the sum is 31.

Adding to 16111277122 its reverse (22177211161), we get a palindrome (38288488283).

The spelling of 16111277122 in words is "sixteen billion, one hundred eleven million, two hundred seventy-seven thousand, one hundred twenty-two".