20010010201 has 4 divisors (see below), whose sum is σ = 20010415012. Its totient is φ = 20009605392.

The previous prime is 20010010199. The next prime is 20010010211. The reversal of 20010010201 is 10201001002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10201001002 = 2 ⋅5100500501.

It can be written as a sum of positive squares in 2 ways, for example, as 12695655625 + 7314354576 = 112675^2 + 85524^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010010201 - 2¹ = 20010010199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010010211) 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, 115950 + ... + 231223.

It is an arithmetic number, because the mean of its divisors is an integer number (5002603753).

Almost surely, 2^20010010201 is an apocalyptic number.

It is an amenable number.

20010010201 is a deficient number, since it is larger than the sum of its proper divisors (404811).

20010010201 is an equidigital number, since it uses as much as digits as its factorization.

20010010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404810.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010010201 its reverse (10201001002), we get a palindrome (30211011203).

The spelling of 20010010201 in words is "twenty billion, ten million, ten thousand, two hundred one".