12002100402 has 64 divisors (see below), whose sum is σ = 26145275904. Its totient is φ = 3658287360.

The previous prime is 12002100401. The next prime is 12002100421. The reversal of 12002100402 is 20400120021.

It is not an unprimeable number, because it can be changed into a prime (12002100401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830563 + ... + 844889.

It is an arithmetic number, because the mean of its divisors is an integer number (408519936).

Almost surely, 2^12002100402 is an apocalyptic number.

12002100402 is an abundant number, since it is smaller than the sum of its proper divisors (14143175502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002100402 is a wasteful number, since it uses less digits than its factorization.

12002100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12002100402 its reverse (20400120021), we get a palindrome (32402220423).

The spelling of 12002100402 in words is "twelve billion, two million, one hundred thousand, four hundred two".