12402220466 has 16 divisors (see below), whose sum is σ = 18654792504. Its totient is φ = 6183972864.

The previous prime is 12402220423. The next prime is 12402220483. The reversal of 12402220466 is 66402220421.

It can be written as a sum of positive squares in 4 ways, for example, as 12087903025 + 314317441 = 109945^2 + 17729^2 .

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, 2367386 + ... + 2372618.

Almost surely, 2^12402220466 is an apocalyptic number.

12402220466 is a deficient number, since it is larger than the sum of its proper divisors (6252572038).

12402220466 is a wasteful number, since it uses less digits than its factorization.

12402220466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8285.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 12402220466 its reverse (66402220421), we get a palindrome (78804440887).

The spelling of 12402220466 in words is "twelve billion, four hundred two million, two hundred twenty thousand, four hundred sixty-six".