21110112201 has 8 divisors (see below), whose sum is σ = 28907541184. Its totient is φ = 13693045680.

The previous prime is 21110112197. The next prime is 21110112223. The reversal of 21110112201 is 10221101112.

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

It is not a de Polignac number, because 21110112201 - 2² = 21110112197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110112251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95090485 + ... + 95090706.

It is an arithmetic number, because the mean of its divisors is an integer number (3613442648).

Almost surely, 2^21110112201 is an apocalyptic number.

It is an amenable number.

21110112201 is a deficient number, since it is larger than the sum of its proper divisors (7797428983).

21110112201 is a wasteful number, since it uses less digits than its factorization.

21110112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190181231.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21110112201 its reverse (10221101112), we get a palindrome (31331213313).

The spelling of 21110112201 in words is "twenty-one billion, one hundred ten million, one hundred twelve thousand, two hundred one".