221324423122 has 16 divisors (see below), whose sum is σ = 365753055744. Its totient is φ = 99605950000.

The previous prime is 221324423011. The next prime is 221324423129.

221324423122 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (221324423129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49800754 + ... + 49805197.

It is an arithmetic number, because the mean of its divisors is an integer number (22859565984).

Almost surely, 2^221324423122 is an apocalyptic number.

221324423122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221324423122 is a deficient number, since it is larger than the sum of its proper divisors (144428632622).

221324423122 is a wasteful number, since it uses less digits than its factorization.

221324423122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99606065.

The product of its digits is 9216, while the sum is 28.

It can be divided in two parts, 221324 and 423122, that added together give a palindrome (644446).

The spelling of 221324423122 in words is "two hundred twenty-one billion, three hundred twenty-four million, four hundred twenty-three thousand, one hundred twenty-two".