12102122404 has 12 divisors (see below), whose sum is σ = 21179718364. Its totient is φ = 6050774304.

The previous prime is 12102122399. The next prime is 12102122413. The reversal of 12102122404 is 40422120121.

It can be written as a sum of positive squares in 2 ways, for example, as 4446222400 + 7655900004 = 66680^2 + 87498^2 .

It is a super-2 number, since 2×12102122404² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43894 + ... + 161650.

Almost surely, 2^12102122404 is an apocalyptic number.

It is an amenable number.

12102122404 is a deficient number, since it is larger than the sum of its proper divisors (9077595960).

12102122404 is a wasteful number, since it uses less digits than its factorization.

12102122404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143454 (or 143452 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12102122404 its reverse (40422120121), we get a palindrome (52524242525).

The spelling of 12102122404 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, four hundred four".