12210999999 has 16 divisors (see below), whose sum is σ = 18241495680. Its totient is φ = 7200588960.

The previous prime is 12210999979. The next prime is 12211000003. The reversal of 12210999999 is 99999901221.

It is a happy number.

It is not a de Polignac number, because 12210999999 - 2¹² = 12210995903 is a prime.

12210999999 is a modest number, since divided by 999999 gives 12210 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210999979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4999189 + ... + 5001630.

It is an arithmetic number, because the mean of its divisors is an integer number (1140093480).

Almost surely, 2^12210999999 is an apocalyptic number.

12210999999 is a deficient number, since it is larger than the sum of its proper divisors (6030495681).

12210999999 is a wasteful number, since it uses less digits than its factorization.

12210999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000870.

The product of its (nonzero) digits is 2125764, while the sum is 60.

The spelling of 12210999999 in words is "twelve billion, two hundred ten million, nine hundred ninety-nine thousand, nine hundred ninety-nine".