21400822206741 has 8 divisors (see below), whose sum is σ = 28593021868864. Its totient is φ = 14237918674560.

The previous prime is 21400822206737. The next prime is 21400822206761. The reversal of 21400822206741 is 14760222800412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21400822206741 - 2² = 21400822206737 is a prime.

It is a super-2 number, since 2×21400822206741² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21400822206741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21400822206761) 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, 7324030780 + ... + 7324033701.

It is an arithmetic number, because the mean of its divisors is an integer number (3574127733608).

Almost surely, 2^{21400822206741} is an apocalyptic number.

It is an amenable number.

21400822206741 is a deficient number, since it is larger than the sum of its proper divisors (7192199662123).

21400822206741 is a wasteful number, since it uses less digits than its factorization.

21400822206741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14648064971.

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 21400822206741 in words is "twenty-one trillion, four hundred billion, eight hundred twenty-two million, two hundred six thousand, seven hundred forty-one".