221402344044 has 24 divisors (see below), whose sum is σ = 590406251008. Its totient is φ = 63257812560.

The previous prime is 221402344021. The next prime is 221402344123. The reversal of 221402344044 is 440443204122.

It is a super-3 number, since 3×221402344044³ (a number of 35 digits) contains 333 as substring.

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, 1317871012 + ... + 1317871179.

Almost surely, 2^221402344044 is an apocalyptic number.

It is an amenable number.

221402344044 is an abundant number, since it is smaller than the sum of its proper divisors (369003906964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221402344044 is a wasteful number, since it uses less digits than its factorization.

221402344044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635742205 (or 2635742203 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 221402344044 its reverse (440443204122), we get a palindrome (661845548166).

The spelling of 221402344044 in words is "two hundred twenty-one billion, four hundred two million, three hundred forty-four thousand, forty-four".