222202112100221 has 8 divisors (see below), whose sum is σ = 244310983670784. Its totient is φ = 200411353789920.

The previous prime is 222202112100217. The next prime is 222202112100223. The reversal of 222202112100221 is 122001211202222.

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

It is a cyclic number.

It is not a de Polignac number, because 222202112100221 - 2² = 222202112100217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222202112100193 and 222202112100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202112100223) 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, 79528313600 + ... + 79528316393.

It is an arithmetic number, because the mean of its divisors is an integer number (30538872958848).

Almost surely, 2^{222202112100221} is an apocalyptic number.

It is an amenable number.

222202112100221 is a deficient number, since it is larger than the sum of its proper divisors (22108871570563).

222202112100221 is a wasteful number, since it uses less digits than its factorization.

222202112100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159056630131.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222202112100221 its reverse (122001211202222), we get a palindrome (344203323302443).

The spelling of 222202112100221 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred twelve million, one hundred thousand, two hundred twenty-one".