12100002 has 32 divisors (see below), whose sum is σ = 25087104. Its totient is φ = 3888000.

The previous prime is 12099991. The next prime is 12100003. The reversal of 12100002 is 20000121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (12100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24603 + ... + 25089.

It is an arithmetic number, because the mean of its divisors is an integer number (783972).

Almost surely, 2^12100002 is an apocalyptic number.

12100002 is an abundant number, since it is smaller than the sum of its proper divisors (12987102).

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

12100002 is a wasteful number, since it uses less digits than its factorization.

12100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 12100002 is about 3478.5057136650. The cubic root of 12100002 is about 229.5770551154.

Adding to 12100002 its reverse (20000121), we get a palindrome (32100123).

The spelling of 12100002 in words is "twelve million, one hundred thousand, two".