221431232414 has 16 divisors (see below), whose sum is σ = 380351075328. Its totient is φ = 94710430392.

The previous prime is 221431232333. The next prime is 221431232417. The reversal of 221431232414 is 414232134122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221431232417) 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, 15715142 + ... + 15729225.

It is an arithmetic number, because the mean of its divisors is an integer number (23771942208).

Almost surely, 2^221431232414 is an apocalyptic number.

221431232414 is a deficient number, since it is larger than the sum of its proper divisors (158919842914).

221431232414 is a wasteful number, since it uses less digits than its factorization.

221431232414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31444879.

The product of its digits is 9216, while the sum is 29.

Adding to 221431232414 its reverse (414232134122), we get a palindrome (635663366536).

The spelling of 221431232414 in words is "two hundred twenty-one billion, four hundred thirty-one million, two hundred thirty-two thousand, four hundred fourteen".