221412442435231 has 8 divisors (see below), whose sum is σ = 224914060586880. Its totient is φ = 217923488364672.

The previous prime is 221412442435213. The next prime is 221412442435237. The reversal of 221412442435231 is 132534244214122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221412442435231 - 2⁵ = 221412442435199 is a prime.

It is a super-2 number, since 2×221412442435231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221412442435237) 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, 3165985030 + ... + 3166054963.

It is an arithmetic number, because the mean of its divisors is an integer number (28114257573360).

Almost surely, 2^{221412442435231} is an apocalyptic number.

221412442435231 is a deficient number, since it is larger than the sum of its proper divisors (3501618151649).

221412442435231 is an equidigital number, since it uses as much as digits as its factorization.

221412442435231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332040545.

The product of its digits is 368640, while the sum is 40.

Adding to 221412442435231 its reverse (132534244214122), we get a palindrome (353946686649353).

The spelling of 221412442435231 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred forty-two million, four hundred thirty-five thousand, two hundred thirty-one".