21022131220233 has 32 divisors (see below), whose sum is σ = 32934492380160. Its totient is φ = 11758946994240.

The previous prime is 21022131220229. The next prime is 21022131220291. The reversal of 21022131220233 is 33202213122012.

It is not a de Polignac number, because 21022131220233 - 2² = 21022131220229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022131220933) 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 31 ways as a sum of consecutive naturals, for example, 513003 + ... + 6504416.

It is an arithmetic number, because the mean of its divisors is an integer number (1029202886880).

Almost surely, 2^{21022131220233} is an apocalyptic number.

It is an amenable number.

21022131220233 is a deficient number, since it is larger than the sum of its proper divisors (11912361159927).

21022131220233 is a wasteful number, since it uses less digits than its factorization.

21022131220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7024429.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21022131220233 its reverse (33202213122012), we get a palindrome (54224344342245).

The spelling of 21022131220233 in words is "twenty-one trillion, twenty-two billion, one hundred thirty-one million, two hundred twenty thousand, two hundred thirty-three".