222321032221 has 16 divisors (see below), whose sum is σ = 238595855040. Its totient is φ = 206508856320.

The previous prime is 222321032203. The next prime is 222321032249. The reversal of 222321032221 is 122230123222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222321032221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222321032192 and 222321032201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222321032281) 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, 1461181 + ... + 1606141.

It is an arithmetic number, because the mean of its divisors is an integer number (14912240940).

Almost surely, 2^222321032221 is an apocalyptic number.

It is an amenable number.

222321032221 is a deficient number, since it is larger than the sum of its proper divisors (16274822819).

222321032221 is a wasteful number, since it uses less digits than its factorization.

222321032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146556.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222321032221 its reverse (122230123222), we get a palindrome (344551155443).

The spelling of 222321032221 in words is "two hundred twenty-two billion, three hundred twenty-one million, thirty-two thousand, two hundred twenty-one".