221301113204 has 24 divisors (see below), whose sum is σ = 389661874056. Its totient is φ = 109969920000.

The previous prime is 221301113141. The next prime is 221301113251. The reversal of 221301113204 is 402311103122.

It can be written as a sum of positive squares in 4 ways, for example, as 38161622500 + 183139490704 = 195350^2 + 427948^2 .

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, 1063664 + ... + 1254584.

It is an arithmetic number, because the mean of its divisors is an integer number (16235911419).

Almost surely, 2^221301113204 is an apocalyptic number.

It is an amenable number.

221301113204 is a deficient number, since it is larger than the sum of its proper divisors (168360760852).

221301113204 is a wasteful number, since it uses less digits than its factorization.

221301113204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192707 (or 192705 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221301113204 its reverse (402311103122), we get a palindrome (623612216326).

The spelling of 221301113204 in words is "two hundred twenty-one billion, three hundred one million, one hundred thirteen thousand, two hundred four".