20001012111202 has 12 divisors (see below), whose sum is σ = 31663652138406. Its totient is φ = 9474163631280.

The previous prime is 20001012111187. The next prime is 20001012111203. The reversal of 20001012111202 is 20211121010002.

It can be written as a sum of positive squares in only one way, i.e., 18644441762241 + 1356570348961 = 4317921^2 + 1164719^2 .

It is not an unprimeable number, because it can be changed into a prime (20001012111203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13851115699 + ... + 13851117142.

Almost surely, 2^{20001012111202} is an apocalyptic number.

20001012111202 is a deficient number, since it is larger than the sum of its proper divisors (11662640027204).

20001012111202 is a wasteful number, since it uses less digits than its factorization.

20001012111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27702232881 (or 27702232862 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20001012111202 its reverse (20211121010002), we get a palindrome (40212133121204).

The spelling of 20001012111202 in words is "twenty trillion, one billion, twelve million, one hundred eleven thousand, two hundred two".