20001210120002 has 16 divisors (see below), whose sum is σ = 30023426433600. Its totient is φ = 9993402579600.

The previous prime is 20001210119999. The next prime is 20001210120077. The reversal of 20001210120002 is 20002101210002.

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, 31747499 + ... + 32371377.

It is an arithmetic number, because the mean of its divisors is an integer number (1876464152100).

Almost surely, 2^{20001210120002} is an apocalyptic number.

20001210120002 is a deficient number, since it is larger than the sum of its proper divisors (10022216313598).

20001210120002 is a wasteful number, since it uses less digits than its factorization.

20001210120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635401.

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

Adding to 20001210120002 its reverse (20002101210002), we get a palindrome (40003311330004).

The spelling of 20001210120002 in words is "twenty trillion, one billion, two hundred ten million, one hundred twenty thousand, two".