9912222222 has 16 divisors (see below), whose sum is σ = 22656508032. Its totient is φ = 2832063480.

The previous prime is 9912222211. The next prime is 9912222247. The reversal of 9912222222 is 2222222199.

9912222222 is a modest number, since divided by 222222 gives 9912 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118002604 + ... + 118002687.

It is an arithmetic number, because the mean of its divisors is an integer number (1416031752).

Almost surely, 2^9912222222 is an apocalyptic number.

9912222222 is an abundant number, since it is smaller than the sum of its proper divisors (12744285810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9912222222 is a wasteful number, since it uses less digits than its factorization.

9912222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236005303.

The product of its digits is 10368, while the sum is 33.

The square root of 9912222222 is about 99560.1437423631. The cubic root of 9912222222 is about 2148.1124390198.

The spelling of 9912222222 in words is "nine billion, nine hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".