20121200002 has 16 divisors (see below), whose sum is σ = 30534941952. Its totient is φ = 9943241200.

The previous prime is 20121199997. The next prime is 20121200053. The reversal of 20121200002 is 20000212102.

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, 25263 + ... + 202189.

It is an arithmetic number, because the mean of its divisors is an integer number (1908433872).

Almost surely, 2^20121200002 is an apocalyptic number.

20121200002 is a deficient number, since it is larger than the sum of its proper divisors (10413741950).

20121200002 is a wasteful number, since it uses less digits than its factorization.

20121200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177593.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20121200002 its reverse (20000212102), we get a palindrome (40121412104).

The spelling of 20121200002 in words is "twenty billion, one hundred twenty-one million, two hundred thousand, two".