21110201200201 has 8 divisors (see below), whose sum is σ = 21120550260480. Its totient is φ = 21099852551232.

The previous prime is 21110201200181. The next prime is 21110201200243. The reversal of 21110201200201 is 10200210201112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110201200201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110201200301) 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, 171925636 + ... + 172048378.

It is an arithmetic number, because the mean of its divisors is an integer number (2640068782560).

Almost surely, 2^{21110201200201} is an apocalyptic number.

It is an amenable number.

21110201200201 is a deficient number, since it is larger than the sum of its proper divisors (10349060279).

21110201200201 is a wasteful number, since it uses less digits than its factorization.

21110201200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205655.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21110201200201 its reverse (10200210201112), we get a palindrome (31310411401313).

The spelling of 21110201200201 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, two hundred thousand, two hundred one".