221401443423110 has 16 divisors (see below), whose sum is σ = 398528165952576. Its totient is φ = 88559340082368.

The previous prime is 221401443423109. The next prime is 221401443423151. The reversal of 221401443423110 is 11324344104122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153909134 + ... + 155340993.

It is an arithmetic number, because the mean of its divisors is an integer number (24908010372036).

Almost surely, 2^{221401443423110} is an apocalyptic number.

221401443423110 is a deficient number, since it is larger than the sum of its proper divisors (177126722529466).

221401443423110 is a wasteful number, since it uses less digits than its factorization.

221401443423110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309321727.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 221401443423110 its reverse (11324344104122), we get a palindrome (232725787527232).

The spelling of 221401443423110 in words is "two hundred twenty-one trillion, four hundred one billion, four hundred forty-three million, four hundred twenty-three thousand, one hundred ten".