10001220201 has 32 divisors (see below), whose sum is σ = 16946657280. Its totient is φ = 5710469328.

The previous prime is 10001220197. The next prime is 10001220223. The reversal of 10001220201 is 10202210001.

It is not a de Polignac number, because 10001220201 - 2² = 10001220197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10001220301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226780 + ... + 267266.

It is an arithmetic number, because the mean of its divisors is an integer number (529583040).

Almost surely, 2^10001220201 is an apocalyptic number.

It is an amenable number.

10001220201 is a deficient number, since it is larger than the sum of its proper divisors (6945437079).

10001220201 is a wasteful number, since it uses less digits than its factorization.

10001220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41810 (or 41804 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10001220201 its reverse (10202210001), we get a palindrome (20203430202).

The spelling of 10001220201 in words is "ten billion, one million, two hundred twenty thousand, two hundred one".