12223422432221 has 128 divisors (see below), whose sum is σ = 17862490275840. Its totient is φ = 8119761027840.

The previous prime is 12223422432197. The next prime is 12223422432227.

12223422432221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12223422432221 - 2²² = 12223418237917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223422432227) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 80712056 + ... + 80863358.

It is an arithmetic number, because the mean of its divisors is an integer number (139550705280).

Almost surely, 2^{12223422432221} is an apocalyptic number.

12223422432221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12223422432221 is a deficient number, since it is larger than the sum of its proper divisors (5639067843619).

12223422432221 is a wasteful number, since it uses less digits than its factorization.

12223422432221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151408 (or 151386 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

It can be divided in two parts, 1222342 and 2432221, that added together give a palindrome (3654563).

The spelling of 12223422432221 in words is "twelve trillion, two hundred twenty-three billion, four hundred twenty-two million, four hundred thirty-two thousand, two hundred twenty-one".