1212002404 has 12 divisors (see below), whose sum is σ = 2123864064. Its totient is φ = 605184104.

The previous prime is 1212002401. The next prime is 1212002413. The reversal of 1212002404 is 4042002121.

It is not an unprimeable number, because it can be changed into a prime (1212002401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200932 + ... + 206875.

It is an arithmetic number, because the mean of its divisors is an integer number (176988672).

Almost surely, 2^1212002404 is an apocalyptic number.

It is an amenable number.

1212002404 is a deficient number, since it is larger than the sum of its proper divisors (911861660).

1212002404 is a wasteful number, since it uses less digits than its factorization.

1212002404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408554 (or 408552 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1212002404 is about 34813.8248975892. The cubic root of 1212002404 is about 1066.1897271855.

Adding to 1212002404 its reverse (4042002121), we get a palindrome (5254004525).

The spelling of 1212002404 in words is "one billion, two hundred twelve million, two thousand, four hundred four".