222210100221 has 8 divisors (see below), whose sum is σ = 306496690080. Its totient is φ = 143031788592.

The previous prime is 222210100213. The next prime is 222210100223. The reversal of 222210100221 is 122001012222.

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

It is not a de Polignac number, because 222210100221 - 2³ = 222210100213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222210100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210100223) 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, 1277069455 + ... + 1277069628.

It is an arithmetic number, because the mean of its divisors is an integer number (38312086260).

Almost surely, 2^222210100221 is an apocalyptic number.

It is an amenable number.

222210100221 is a deficient number, since it is larger than the sum of its proper divisors (84286589859).

222210100221 is a wasteful number, since it uses less digits than its factorization.

222210100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554139115.

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

Adding to 222210100221 its reverse (122001012222), we get a palindrome (344211112443).

The spelling of 222210100221 in words is "two hundred twenty-two billion, two hundred ten million, one hundred thousand, two hundred twenty-one".