21001112010201 has 8 divisors (see below), whose sum is σ = 28051754644224. Its totient is φ = 13975605358160.

The previous prime is 21001112010199. The next prime is 21001112010233. The reversal of 21001112010201 is 10201021110012.

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 21001112010201 - 2¹ = 21001112010199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21001112010001) 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, 6283993545 + ... + 6283996886.

It is an arithmetic number, because the mean of its divisors is an integer number (3506469330528).

Almost surely, 2^{21001112010201} is an apocalyptic number.

It is an amenable number.

21001112010201 is a deficient number, since it is larger than the sum of its proper divisors (7050642634023).

21001112010201 is a wasteful number, since it uses less digits than its factorization.

21001112010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12567990991.

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

Adding to 21001112010201 its reverse (10201021110012), we get a palindrome (31202133120213).

The spelling of 21001112010201 in words is "twenty-one trillion, one billion, one hundred twelve million, ten thousand, two hundred one".