222221323102 has 4 divisors (see below), whose sum is σ = 333331984656. Its totient is φ = 111110661550.

The previous prime is 222221323099. The next prime is 222221323151. The reversal of 222221323102 is 201323122222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201323122222 = 2 ⋅100661561111.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 55555330774 + ... + 55555330777.

It is an arithmetic number, because the mean of its divisors is an integer number (83332996164).

Almost surely, 2^222221323102 is an apocalyptic number.

222221323102 is a deficient number, since it is larger than the sum of its proper divisors (111110661554).

222221323102 is a wasteful number, since it uses less digits than its factorization.

222221323102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110661553.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222221323102 its reverse (201323122222), we get a palindrome (423544445324).

The spelling of 222221323102 in words is "two hundred twenty-two billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred two".