12206628890 has 16 divisors (see below), whose sum is σ = 21978078408. Its totient is φ = 4881285696.

The previous prime is 12206628887. The next prime is 12206628919. The reversal of 12206628890 is 9882660221.

It can be written as a sum of positive squares in 4 ways, for example, as 3785079529 + 8421549361 = 61523^2 + 91769^2 .

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, 132797 + ... + 205056.

Almost surely, 2^12206628890 is an apocalyptic number.

12206628890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12206628890 is a deficient number, since it is larger than the sum of its proper divisors (9771449518).

12206628890 is a wasteful number, since it uses less digits than its factorization.

12206628890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341473.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 12206628890 in words is "twelve billion, two hundred six million, six hundred twenty-eight thousand, eight hundred ninety".