20001210002 has 4 divisors (see below), whose sum is σ = 30001815006. Its totient is φ = 10000605000.

The previous prime is 20001210001. The next prime is 20001210037.

20001210002 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19179757081 + 821452921 = 138491^2 + 28661^2 .

It is not an unprimeable number, because it can be changed into a prime (20001210001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000302499 + ... + 5000302502.

Almost surely, 2^20001210002 is an apocalyptic number.

20001210002 is a deficient number, since it is larger than the sum of its proper divisors (10000605004).

20001210002 is a wasteful number, since it uses less digits than its factorization.

20001210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000605003.

The product of its (nonzero) digits is 8, while the sum is 8.

The spelling of 20001210002 in words is "twenty billion, one million, two hundred ten thousand, two".