221323323122 has 16 divisors (see below), whose sum is σ = 363881869344. Its totient is φ = 100124724000.

The previous prime is 221323323101. The next prime is 221323323149.

221323323122 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221323323091 and 221323323100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23834579 + ... + 23843862.

It is an arithmetic number, because the mean of its divisors is an integer number (22742616834).

Almost surely, 2^221323323122 is an apocalyptic number.

221323323122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221323323122 is a deficient number, since it is larger than the sum of its proper divisors (142558546222).

221323323122 is a wasteful number, since it uses less digits than its factorization.

221323323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47678665.

The product of its digits is 5184, while the sum is 26.

It can be divided in two parts, 221323 and 323122, that added together give a palindrome (544445).

The spelling of 221323323122 in words is "two hundred twenty-one billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred twenty-two".