12490778222 has 32 divisors (see below), whose sum is σ = 21065341248. Its totient is φ = 5511534336.

The previous prime is 12490778221. The next prime is 12490778227. The reversal of 12490778222 is 22287709421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490778221) 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, 1570568 + ... + 1578500.

It is an arithmetic number, because the mean of its divisors is an integer number (658291914).

Almost surely, 2^12490778222 is an apocalyptic number.

12490778222 is a deficient number, since it is larger than the sum of its proper divisors (8574563026).

12490778222 is a wasteful number, since it uses less digits than its factorization.

12490778222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10604.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 12490778222 in words is "twelve billion, four hundred ninety million, seven hundred seventy-eight thousand, two hundred twenty-two".