222442100321 has 16 divisors (see below), whose sum is σ = 261257488128. Its totient is φ = 185416108800.

The previous prime is 222442100317. The next prime is 222442100323. The reversal of 222442100321 is 123001244222.

It is a cyclic number.

It is not a de Polignac number, because 222442100321 - 2² = 222442100317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222442100323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156820 + ... + 1335333.

It is an arithmetic number, because the mean of its divisors is an integer number (16328593008).

Almost surely, 2^222442100321 is an apocalyptic number.

It is an amenable number.

222442100321 is a deficient number, since it is larger than the sum of its proper divisors (38815387807).

222442100321 is a wasteful number, since it uses less digits than its factorization.

222442100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492512.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 222442100321 its reverse (123001244222), we get a palindrome (345443344543).

The spelling of 222442100321 in words is "two hundred twenty-two billion, four hundred forty-two million, one hundred thousand, three hundred twenty-one".