21100133330211 has 32 divisors (see below), whose sum is σ = 31986875415040. Its totient is φ = 12264789809664.

The previous prime is 21100133330209. The next prime is 21100133330219. The reversal of 21100133330211 is 11203333100112.

It is a happy number.

It is not a de Polignac number, because 21100133330211 - 2¹ = 21100133330209 is a prime.

It is a super-2 number, since 2×21100133330211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21100133330219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41998375 + ... + 42497808.

It is an arithmetic number, because the mean of its divisors is an integer number (999589856720).

Almost surely, 2^{21100133330211} is an apocalyptic number.

21100133330211 is a deficient number, since it is larger than the sum of its proper divisors (10886742084829).

21100133330211 is a wasteful number, since it uses less digits than its factorization.

21100133330211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84496555.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21100133330211 its reverse (11203333100112), we get a palindrome (32303466430323).

The spelling of 21100133330211 in words is "twenty-one trillion, one hundred billion, one hundred thirty-three million, three hundred thirty thousand, two hundred eleven".