12222661250 has 90 divisors (see below), whose sum is σ = 23753059869. Its totient is φ = 4715516000.

The previous prime is 12222661237. The next prime is 12222661273. The reversal of 12222661250 is 5216622221.

It can be written as a sum of positive squares in 8 ways, for example, as 36929929 + 12185731321 = 6077^2 + 110389^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78175.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 207163721 + ... + 207163779.

Almost surely, 2^12222661250 is an apocalyptic number.

12222661250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222661250 is a deficient number, since it is larger than the sum of its proper divisors (11530398619).

12222661250 is an frugal number, since it uses more digits than its factorization.

12222661250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 12222661250 in words is "twelve billion, two hundred twenty-two million, six hundred sixty-one thousand, two hundred fifty".