21222201033 has 24 divisors (see below), whose sum is σ = 33816800160. Its totient is φ = 12717418560.

The previous prime is 21222200983. The next prime is 21222201047. The reversal of 21222201033 is 33010222212.

It is not a de Polignac number, because 21222201033 - 2¹⁰ = 21222200009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21222200997 and 21222201015.

It is not an unprimeable number, because it can be changed into a prime (21222201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195491 + ... + 1213112.

It is an arithmetic number, because the mean of its divisors is an integer number (1409033340).

Almost surely, 2^21222201033 is an apocalyptic number.

It is an amenable number.

21222201033 is a deficient number, since it is larger than the sum of its proper divisors (12594599127).

21222201033 is a wasteful number, since it uses less digits than its factorization.

21222201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408709 (or 2408706 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21222201033 its reverse (33010222212), we get a palindrome (54232423245).

The spelling of 21222201033 in words is "twenty-one billion, two hundred twenty-two million, two hundred one thousand, thirty-three".