21102101102201 has 8 divisors (see below), whose sum is σ = 24120840057600. Its totient is φ = 18084400417728.

The previous prime is 21102101102197. The next prime is 21102101102267. The reversal of 21102101102201 is 10220110120112.

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 21102101102201 - 2² = 21102101102197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21102101132201) 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, 259524176 + ... + 259605473.

It is an arithmetic number, because the mean of its divisors is an integer number (3015105007200).

Almost surely, 2^{21102101102201} is an apocalyptic number.

It is an amenable number.

21102101102201 is a deficient number, since it is larger than the sum of its proper divisors (3018738955399).

21102101102201 is an equidigital number, since it uses as much as digits as its factorization.

21102101102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519135463.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21102101102201 its reverse (10220110120112), we get a palindrome (31322211222313).

The spelling of 21102101102201 in words is "twenty-one trillion, one hundred two billion, one hundred one million, one hundred two thousand, two hundred one".