222200120210221 has 4 divisors (see below), whose sum is σ = 233894863379200. Its totient is φ = 210505377041244.

The previous prime is 222200120210153. The next prime is 222200120210309. The reversal of 222200120210221 is 122012021002222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222200120210221 - 2⁷ = 222200120210093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 11694743168959 = 222200120210221 / (2 + 2 + 2 + 2 + 0 + 0 + 1 + 2 + 0 + 2 + 1 + 0 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200120211221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5847371584461 + ... + 5847371584498.

It is an arithmetic number, because the mean of its divisors is an integer number (58473715844800).

Almost surely, 2^{222200120210221} is an apocalyptic number.

It is an amenable number.

222200120210221 is a deficient number, since it is larger than the sum of its proper divisors (11694743168979).

222200120210221 is a wasteful number, since it uses less digits than its factorization.

222200120210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694743168978.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222200120210221 its reverse (122012021002222), we get a palindrome (344212141212443).

The spelling of 222200120210221 in words is "two hundred twenty-two trillion, two hundred billion, one hundred twenty million, two hundred ten thousand, two hundred twenty-one".