12412220402 has 12 divisors (see below), whose sum is σ = 19649818206. Its totient is φ = 5879472480.

The previous prime is 12412220369. The next prime is 12412220449. The reversal of 12412220402 is 20402221421.

It can be written as a sum of positive squares in only one way, i.e., 12181757641 + 230462761 = 110371^2 + 15181^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8594999 + ... + 8596442.

Almost surely, 2^12412220402 is an apocalyptic number.

12412220402 is a deficient number, since it is larger than the sum of its proper divisors (7237597804).

12412220402 is a wasteful number, since it uses less digits than its factorization.

12412220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17191481 (or 17191462 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12412220402 its reverse (20402221421), we get a palindrome (32814441823).

The spelling of 12412220402 in words is "twelve billion, four hundred twelve million, two hundred twenty thousand, four hundred two".