222204221044 has 36 divisors (see below), whose sum is σ = 445839296364. Its totient is φ = 96523095552.

The previous prime is 222204221021. The next prime is 222204221081. The reversal of 222204221044 is 440122402222.

It can be written as a sum of positive squares in 6 ways, for example, as 1809651600 + 220394569444 = 42540^2 + 469462^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9656287 + ... + 9679270.

It is an arithmetic number, because the mean of its divisors is an integer number (12384424899).

Almost surely, 2^222204221044 is an apocalyptic number.

It is an amenable number.

222204221044 is an abundant number, since it is smaller than the sum of its proper divisors (223635075320).

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

222204221044 is a wasteful number, since it uses less digits than its factorization.

222204221044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19335604 (or 19335589 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 222204221044 its reverse (440122402222), we get a palindrome (662326623266).

The spelling of 222204221044 in words is "two hundred twenty-two billion, two hundred four million, two hundred twenty-one thousand, forty-four".