221244204112 has 10 divisors (see below), whose sum is σ = 428660645498. Its totient is φ = 110622102048.

The previous prime is 221244204101. The next prime is 221244204131. The reversal of 221244204112 is 211402442122.

It can be written as a sum of positive squares in only one way, i.e., 166101893136 + 55142310976 = 407556^2 + 234824^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6913881363 + ... + 6913881394.

Almost surely, 2^221244204112 is an apocalyptic number.

It is an amenable number.

221244204112 is a deficient number, since it is larger than the sum of its proper divisors (207416441386).

221244204112 is a wasteful number, since it uses less digits than its factorization.

221244204112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827762765 (or 13827762759 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221244204112 its reverse (211402442122), we get a palindrome (432646646234).

The spelling of 221244204112 in words is "two hundred twenty-one billion, two hundred forty-four million, two hundred four thousand, one hundred twelve".