221234432122 has 16 divisors (see below), whose sum is σ = 365604339744. Its totient is φ = 99565450000.

The previous prime is 221234432113. The next prime is 221234432131.

221234432122 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (221234432113) and next prime (221234432131).

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, 49780504 + ... + 49784947.

It is an arithmetic number, because the mean of its divisors is an integer number (22850271234).

Almost surely, 2^221234432122 is an apocalyptic number.

221234432122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221234432122 is a deficient number, since it is larger than the sum of its proper divisors (144369907622).

221234432122 is a wasteful number, since it uses less digits than its factorization.

221234432122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99565565.

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

It can be divided in two parts, 221234 and 432122, that added together give a palindrome (653356).

The spelling of 221234432122 in words is "two hundred twenty-one billion, two hundred thirty-four million, four hundred thirty-two thousand, one hundred twenty-two".