222321135250 has 16 divisors (see below), whose sum is σ = 416185165656. Its totient is φ = 88928454000.

The previous prime is 222321135241. The next prime is 222321135317. The reversal of 222321135250 is 52531123222.

It can be written as a sum of positive squares in 4 ways, for example, as 129068466121 + 93252669129 = 359261^2 + 305373^2 .

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, 444642021 + ... + 444642520.

Almost surely, 2^222321135250 is an apocalyptic number.

222321135250 is a deficient number, since it is larger than the sum of its proper divisors (193864030406).

222321135250 is an equidigital number, since it uses as much as digits as its factorization.

222321135250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889284558 (or 889284548 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 222321135250 its reverse (52531123222), we get a palindrome (274852258472).

The spelling of 222321135250 in words is "two hundred twenty-two billion, three hundred twenty-one million, one hundred thirty-five thousand, two hundred fifty".