21112100022201 has 8 divisors (see below), whose sum is σ = 28179767525280. Its totient is φ = 14059582933632.

The previous prime is 21112100022193. The next prime is 21112100022281. The reversal of 21112100022201 is 10222000121112.

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

It is not a de Polignac number, because 21112100022201 - 2³ = 21112100022193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21112100022281) 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, 3787600375 + ... + 3787605948.

It is an arithmetic number, because the mean of its divisors is an integer number (3522470940660).

Almost surely, 2^{21112100022201} is an apocalyptic number.

It is an amenable number.

21112100022201 is a deficient number, since it is larger than the sum of its proper divisors (7067667503079).

21112100022201 is an equidigital number, since it uses as much as digits as its factorization.

21112100022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575207255.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21112100022201 its reverse (10222000121112), we get a palindrome (31334100143313).

The spelling of 21112100022201 in words is "twenty-one trillion, one hundred twelve billion, one hundred million, twenty-two thousand, two hundred one".