221334144398 has 16 divisors (see below), whose sum is σ = 332264922480. Its totient is φ = 110579204736.

The previous prime is 221334144397. The next prime is 221334144403. The reversal of 221334144398 is 893441433122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221334144397) 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, 28267148 + ... + 28274976.

It is an arithmetic number, because the mean of its divisors is an integer number (20766557655).

Almost surely, 2^221334144398 is an apocalyptic number.

221334144398 is a deficient number, since it is larger than the sum of its proper divisors (110930778082).

221334144398 is a wasteful number, since it uses less digits than its factorization.

221334144398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17251.

The product of its digits is 497664, while the sum is 44.

The spelling of 221334144398 in words is "two hundred twenty-one billion, three hundred thirty-four million, one hundred forty-four thousand, three hundred ninety-eight".