221317713122 has 16 divisors (see below), whose sum is σ = 362175492672. Its totient is φ = 100593617520.

The previous prime is 221317713109. The next prime is 221317713131.

221317713122 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172568 + ... + 687324.

It is an arithmetic number, because the mean of its divisors is an integer number (22635968292).

Almost surely, 2^221317713122 is an apocalyptic number.

221317713122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221317713122 is a deficient number, since it is larger than the sum of its proper divisors (140857779550).

221317713122 is a wasteful number, since it uses less digits than its factorization.

221317713122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534313.

The product of its digits is 7056, while the sum is 32.

It can be divided in two parts, 221317 and 713122, that added together give a palindrome (934439).

The spelling of 221317713122 in words is "two hundred twenty-one billion, three hundred seventeen million, seven hundred thirteen thousand, one hundred twenty-two".