222001210221 has 8 divisors (see below), whose sum is σ = 338287558464. Its totient is φ = 126857834400.

The previous prime is 222001210181. The next prime is 222001210247. The reversal of 222001210221 is 122012100222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222001210221 - 2⁶ = 222001210157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222001210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001250221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285743080 + ... + 5285743121.

It is an arithmetic number, because the mean of its divisors is an integer number (42285944808).

Almost surely, 2^222001210221 is an apocalyptic number.

222001210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222001210221 is a deficient number, since it is larger than the sum of its proper divisors (116286348243).

222001210221 is a wasteful number, since it uses less digits than its factorization.

222001210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571486211.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222001210221 its reverse (122012100222), we get a palindrome (344013310443).

The spelling of 222001210221 in words is "two hundred twenty-two billion, one million, two hundred ten thousand, two hundred twenty-one".