21214050305411 has 8 divisors (see below), whose sum is σ = 22462617144240. Its totient is φ = 19965559191808.

The previous prime is 21214050305407. The next prime is 21214050305443. The reversal of 21214050305411 is 11450305041212.

It is a happy number.

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 21214050305411 - 2² = 21214050305407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21214050305611) 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, 18354026 + ... + 19475583.

It is an arithmetic number, because the mean of its divisors is an integer number (2807827143030).

Almost surely, 2^{21214050305411} is an apocalyptic number.

21214050305411 is a deficient number, since it is larger than the sum of its proper divisors (1248566838829).

21214050305411 is a wasteful number, since it uses less digits than its factorization.

21214050305411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37862613.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 21214050305411 its reverse (11450305041212), we get a palindrome (32664355346623).

The spelling of 21214050305411 in words is "twenty-one trillion, two hundred fourteen billion, fifty million, three hundred five thousand, four hundred eleven".