222200311133221 has 4 divisors (see below), whose sum is σ = 229862390827500. Its totient is φ = 214538231438944.

The previous prime is 222200311133189. The next prime is 222200311133239. The reversal of 222200311133221 is 122331113002222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49017711600225 + 173182599532996 = 7001265^2 + 13159886^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200311133221 - 2⁵ = 222200311133189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200311133291) 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, 3831039847096 + ... + 3831039847153.

It is an arithmetic number, because the mean of its divisors is an integer number (57465597706875).

Almost surely, 2^{222200311133221} is an apocalyptic number.

It is an amenable number.

222200311133221 is a deficient number, since it is larger than the sum of its proper divisors (7662079694279).

222200311133221 is an equidigital number, since it uses as much as digits as its factorization.

222200311133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7662079694278.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 222200311133221 its reverse (122331113002222), we get a palindrome (344531424135443).

The spelling of 222200311133221 in words is "two hundred twenty-two trillion, two hundred billion, three hundred eleven million, one hundred thirty-three thousand, two hundred twenty-one".