221344041441331 has 16 divisors (see below), whose sum is σ = 247951521718560. Its totient is φ = 196357568601600.

The previous prime is 221344041441319. The next prime is 221344041441349. The reversal of 221344041441331 is 133144140443122.

It is a cyclic number.

It is not a de Polignac number, because 221344041441331 - 2⁷ = 221344041441203 is a prime.

It is a super-2 number, since 2×221344041441331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221344041441301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1739214720 + ... + 1739341981.

It is an arithmetic number, because the mean of its divisors is an integer number (15496970107410).

Almost surely, 2^{221344041441331} is an apocalyptic number.

221344041441331 is a deficient number, since it is larger than the sum of its proper divisors (26607480277229).

221344041441331 is a wasteful number, since it uses less digits than its factorization.

221344041441331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478556934.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 221344041441331 its reverse (133144140443122), we get a palindrome (354488181884453).

The spelling of 221344041441331 in words is "two hundred twenty-one trillion, three hundred forty-four billion, forty-one million, four hundred forty-one thousand, three hundred thirty-one".