20120200001 has 16 divisors (see below), whose sum is σ = 22542408000. Its totient is φ = 17802984000.

The previous prime is 20120199991. The next prime is 20120200033. The reversal of 20120200001 is 10000202102.

It is a cyclic number.

It is not a de Polignac number, because 20120200001 - 2¹⁴ = 20120183617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20120200201) 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, 87926 + ... + 219023.

It is an arithmetic number, because the mean of its divisors is an integer number (1408900500).

Almost surely, 2^20120200001 is an apocalyptic number.

It is an amenable number.

20120200001 is a deficient number, since it is larger than the sum of its proper divisors (2422207999).

20120200001 is a wasteful number, since it uses less digits than its factorization.

20120200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307120.

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

Adding to 20120200001 its reverse (10000202102), we get a palindrome (30120402103).

It can be divided in two parts, 201 and 20200001, that added together give a palindrome (20200202).

The spelling of 20120200001 in words is "twenty billion, one hundred twenty million, two hundred thousand, one".