21100011201201 has 8 divisors (see below), whose sum is σ = 28136887531200. Its totient is φ = 14064904502672.

The previous prime is 21100011201197. The next prime is 21100011201221. The reversal of 21100011201201 is 10210211000112.

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 21100011201201 - 2² = 21100011201197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21100011201221) 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, 442380045 + ... + 442427738.

It is an arithmetic number, because the mean of its divisors is an integer number (3517110941400).

Almost surely, 2^{21100011201201} is an apocalyptic number.

It is an amenable number.

21100011201201 is a deficient number, since it is larger than the sum of its proper divisors (7036876329999).

21100011201201 is an equidigital number, since it uses as much as digits as its factorization.

21100011201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884815735.

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

Adding to 21100011201201 its reverse (10210211000112), we get a palindrome (31310222201313).

The spelling of 21100011201201 in words is "twenty-one trillion, one hundred billion, eleven million, two hundred one thousand, two hundred one".