12222278890 has 16 divisors (see below), whose sum is σ = 22956628608. Its totient is φ = 4676350096.

The previous prime is 12222278837. The next prime is 12222278917. The reversal of 12222278890 is 9887222221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26569942 + ... + 26570401.

It is an arithmetic number, because the mean of its divisors is an integer number (1434789288).

Almost surely, 2^12222278890 is an apocalyptic number.

12222278890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222278890 is a deficient number, since it is larger than the sum of its proper divisors (10734349718).

12222278890 is a wasteful number, since it uses less digits than its factorization.

12222278890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53140373.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 12222278890 in words is "twelve billion, two hundred twenty-two million, two hundred seventy-eight thousand, eight hundred ninety".