222222313312210 has 8 divisors (see below), whose sum is σ = 400000163961996. Its totient is φ = 88888925324880.

The previous prime is 222222313311997. The next prime is 222222313312283. The reversal of 222222313312210 is 12213313222222.

It can be written as a sum of positive squares in 2 ways, for example, as 196579159207561 + 25643154104649 = 14020669^2 + 5063907^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 11111115665601 + ... + 11111115665620.

Almost surely, 2^{222222313312210} is an apocalyptic number.

222222313312210 is a deficient number, since it is larger than the sum of its proper divisors (177777850649786).

222222313312210 is a wasteful number, since it uses less digits than its factorization.

222222313312210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222231331228.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 222222313312210 its reverse (12213313222222), we get a palindrome (234435626534432).

The spelling of 222222313312210 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, three hundred thirteen million, three hundred twelve thousand, two hundred ten".