21013334214001 has 4 divisors (see below), whose sum is σ = 21249439092900. Its totient is φ = 20777229335104.

The previous prime is 21013334213999. The next prime is 21013334214013. The reversal of 21013334214001 is 10041243331012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12116978093025 + 8896356120976 = 3480945^2 + 2982676^2 .

It is a cyclic number.

It is not a de Polignac number, because 21013334214001 - 2¹ = 21013334213999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21013334214401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118052439316 + ... + 118052439493.

It is an arithmetic number, because the mean of its divisors is an integer number (5312359773225).

Almost surely, 2^{21013334214001} is an apocalyptic number.

It is an amenable number.

21013334214001 is a deficient number, since it is larger than the sum of its proper divisors (236104878899).

21013334214001 is an equidigital number, since it uses as much as digits as its factorization.

21013334214001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236104878898.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21013334214001 its reverse (10041243331012), we get a palindrome (31054577545013).

The spelling of 21013334214001 in words is "twenty-one trillion, thirteen billion, three hundred thirty-four million, two hundred fourteen thousand, one".