222002132221 has 4 divisors (see below), whose sum is σ = 224157492832. Its totient is φ = 219846771612.

The previous prime is 222002132197. The next prime is 222002132243. The reversal of 222002132221 is 122231200222.

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 222002132221 - 2⁵ = 222002132189 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 (222002132251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077680151 + ... + 1077680356.

It is an arithmetic number, because the mean of its divisors is an integer number (56039373208).

Almost surely, 2^222002132221 is an apocalyptic number.

It is an amenable number.

222002132221 is a deficient number, since it is larger than the sum of its proper divisors (2155360611).

222002132221 is a wasteful number, since it uses less digits than its factorization.

222002132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155360610.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222002132221 its reverse (122231200222), we get a palindrome (344233332443).

The spelling of 222002132221 in words is "two hundred twenty-two billion, two million, one hundred thirty-two thousand, two hundred twenty-one".