20121210002 has 16 divisors (see below), whose sum is σ = 30472837632. Its totient is φ = 9963939360.

The previous prime is 20121209993. The next prime is 20121210017. The reversal of 20121210002 is 20001212102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32903 + ... + 203285.

It is an arithmetic number, because the mean of its divisors is an integer number (1904552352).

Almost surely, 2^20121210002 is an apocalyptic number.

20121210002 is a deficient number, since it is larger than the sum of its proper divisors (10351627630).

20121210002 is a wasteful number, since it uses less digits than its factorization.

20121210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170953.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20121210002 its reverse (20001212102), we get a palindrome (40122422104).

The spelling of 20121210002 in words is "twenty billion, one hundred twenty-one million, two hundred ten thousand, two".