20002112201 has 4 divisors (see below), whose sum is σ = 20276113812. Its totient is φ = 19728110592.

The previous prime is 20002112197. The next prime is 20002112239. The reversal of 20002112201 is 10221120002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14921844025 + 5080268176 = 122155^2 + 71276^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002112201 - 2² = 20002112197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002112281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137000696 + ... + 137000841.

It is an arithmetic number, because the mean of its divisors is an integer number (5069028453).

Almost surely, 2^20002112201 is an apocalyptic number.

It is an amenable number.

20002112201 is a deficient number, since it is larger than the sum of its proper divisors (274001611).

20002112201 is an equidigital number, since it uses as much as digits as its factorization.

20002112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274001610.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002112201 its reverse (10221120002), we get a palindrome (30223232203).

The spelling of 20002112201 in words is "twenty billion, two million, one hundred twelve thousand, two hundred one".