21011201202101 has 8 divisors (see below), whose sum is σ = 23096282239008. Its totient is φ = 18955282138000.

The previous prime is 21011201202097. The next prime is 21011201202119. The reversal of 21011201202101 is 10120210211012.

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 21011201202101 - 2² = 21011201202097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011201204101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7290491690 + ... + 7290494571.

It is an arithmetic number, because the mean of its divisors is an integer number (2887035279876).

Almost surely, 2^{21011201202101} is an apocalyptic number.

It is an amenable number.

21011201202101 is a deficient number, since it is larger than the sum of its proper divisors (2085081036907).

21011201202101 is a wasteful number, since it uses less digits than its factorization.

21011201202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14580986403.

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

Adding to 21011201202101 its reverse (10120210211012), we get a palindrome (31131411413113).

The spelling of 21011201202101 in words is "twenty-one trillion, eleven billion, two hundred one million, two hundred two thousand, one hundred one".