20012102012002 has 16 divisors (see below), whose sum is σ = 30830083198200. Its totient is φ = 9735418643328.

The previous prime is 20012102011963. The next prime is 20012102012009. The reversal of 20012102012002 is 20021020121002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18247856606001 + 1764245406001 = 4271751^2 + 1328249^2 .

It is not an unprimeable number, because it can be changed into a prime (20012102012009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928374 + ... + 6394222.

Almost surely, 2^{20012102012002} is an apocalyptic number.

20012102012002 is a deficient number, since it is larger than the sum of its proper divisors (10817981186198).

20012102012002 is a wasteful number, since it uses less digits than its factorization.

20012102012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515365.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012102012002 its reverse (20021020121002), we get a palindrome (40033122133004).

The spelling of 20012102012002 in words is "twenty trillion, twelve billion, one hundred two million, twelve thousand, two".