222421004552 has 16 divisors (see below), whose sum is σ = 417163515900. Its totient is φ = 111177400320.

The previous prime is 222421004497. The next prime is 222421004567. The reversal of 222421004552 is 255400124222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 188309130916 + 34111873636 = 433946^2 + 184694^2 .

It is a super-2 number, since 2×222421004552² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109177 + ... + 4162952.

Almost surely, 2^222421004552 is an apocalyptic number.

It is an amenable number.

222421004552 is a deficient number, since it is larger than the sum of its proper divisors (194742511348).

222421004552 is a wasteful number, since it uses less digits than its factorization.

222421004552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8275496 (or 8275492 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 222421004552 its reverse (255400124222), we get a palindrome (477821128774).

The spelling of 222421004552 in words is "two hundred twenty-two billion, four hundred twenty-one million, four thousand, five hundred fifty-two".