21200221411411 has 8 divisors (see below), whose sum is σ = 24248506709504. Its totient is φ = 18156856673160.

The previous prime is 21200221411387. The next prime is 21200221411429. The reversal of 21200221411411 is 11411412200212.

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 21200221411411 - 2⁵ = 21200221411379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200221411441) 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, 1230130725 + ... + 1230147958.

It is an arithmetic number, because the mean of its divisors is an integer number (3031063338688).

Almost surely, 2^{21200221411411} is an apocalyptic number.

21200221411411 is a deficient number, since it is larger than the sum of its proper divisors (3048285298093).

21200221411411 is a wasteful number, since it uses less digits than its factorization.

21200221411411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460279921.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 21200221411411 its reverse (11411412200212), we get a palindrome (32611633611623).

The spelling of 21200221411411 in words is "twenty-one trillion, two hundred billion, two hundred twenty-one million, four hundred eleven thousand, four hundred eleven".