21100220233233 has 8 divisors (see below), whose sum is σ = 28136036344128. Its totient is φ = 14065608805584.

The previous prime is 21100220233207. The next prime is 21100220233271. The reversal of 21100220233233 is 33233202200112.

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

It is not a de Polignac number, because 21100220233233 - 2¹³ = 21100220225041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21100220233733) 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 7 ways as a sum of consecutive naturals, for example, 301129941 + ... + 301200002.

It is an arithmetic number, because the mean of its divisors is an integer number (3517004543016).

Almost surely, 2^{21100220233233} is an apocalyptic number.

It is an amenable number.

21100220233233 is a deficient number, since it is larger than the sum of its proper divisors (7035816110895).

21100220233233 is a wasteful number, since it uses less digits than its factorization.

21100220233233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602341623.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21100220233233 its reverse (33233202200112), we get a palindrome (54333422433345).

The spelling of 21100220233233 in words is "twenty-one trillion, one hundred billion, two hundred twenty million, two hundred thirty-three thousand, two hundred thirty-three".