20101019201 has 8 divisors (see below), whose sum is σ = 21675040800. Its totient is φ = 18578604960.

The previous prime is 20101019167. The next prime is 20101019221. The reversal of 20101019201 is 10291010102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20101019201 - 2²² = 20096824897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20101019201.

It is not an unprimeable number, because it can be changed into a prime (20101019221) 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, 12901031 + ... + 12902588.

It is an arithmetic number, because the mean of its divisors is an integer number (2709380100).

Almost surely, 2^20101019201 is an apocalyptic number.

It is an amenable number.

20101019201 is a deficient number, since it is larger than the sum of its proper divisors (1574021599).

20101019201 is a wasteful number, since it uses less digits than its factorization.

20101019201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25803679.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 20101019201 its reverse (10291010102), we get a palindrome (30392029303).

The spelling of 20101019201 in words is "twenty billion, one hundred one million, nineteen thousand, two hundred one".