20201000120002 has 32 divisors (see below), whose sum is σ = 34562368561392. Its totient is φ = 8772445753344.

The previous prime is 20201000119981. The next prime is 20201000120003. The reversal of 20201000120002 is 20002100010202.

It can be written as a sum of positive squares in 8 ways, for example, as 19164511197441 + 1036488922561 = 4377729^2 + 1018081^2 .

It is not an unprimeable number, because it can be changed into a prime (20201000120003) 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, 5433273 + ... + 8361964.

Almost surely, 2^{20201000120002} is an apocalyptic number.

20201000120002 is a deficient number, since it is larger than the sum of its proper divisors (14361368441390).

20201000120002 is a wasteful number, since it uses less digits than its factorization.

20201000120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13798582.

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

Adding to 20201000120002 its reverse (20002100010202), we get a palindrome (40203100130204).

The spelling of 20201000120002 in words is "twenty trillion, two hundred one billion, one hundred twenty thousand, two".