772222172227 has 8 divisors (see below), whose sum is σ = 842431135680. Its totient is φ = 702014366760.

The previous prime is 772222172209. The next prime is 772222172251. The reversal of 772222172227 is 722271222277.

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

It is a cyclic number.

It is not a de Polignac number, because 772222172227 - 2²⁷ = 772087954499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772222172327) 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 7 ways as a sum of consecutive naturals, for example, 1698388 + ... + 2104510.

It is an arithmetic number, because the mean of its divisors is an integer number (105303891960).

Almost surely, 2^772222172227 is an apocalyptic number.

772222172227 is a deficient number, since it is larger than the sum of its proper divisors (70208963453).

772222172227 is a wasteful number, since it uses less digits than its factorization.

772222172227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578993.

The product of its digits is 307328, while the sum is 43.

It can be divided in two parts, 772222 and 172227, that added together give a palindrome (944449).

The spelling of 772222172227 in words is "seven hundred seventy-two billion, two hundred twenty-two million, one hundred seventy-two thousand, two hundred twenty-seven".