21032202033 has 12 divisors (see below), whose sum is σ = 30512513460. Its totient is φ = 13960237536.

The previous prime is 21032202007. The next prime is 21032202043. The reversal of 21032202033 is 33020223012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20476751409 + 555450624 = 143097^2 + 23568^2 .

It is not a de Polignac number, because 21032202033 - 2²² = 21028007729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21032201997 and 21032202015.

It is not an unprimeable number, because it can be changed into a prime (21032202043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5100366 + ... + 5104487.

It is an arithmetic number, because the mean of its divisors is an integer number (2542709455).

Almost surely, 2^21032202033 is an apocalyptic number.

It is an amenable number.

21032202033 is a deficient number, since it is larger than the sum of its proper divisors (9480311427).

21032202033 is a wasteful number, since it uses less digits than its factorization.

21032202033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205088 (or 10205085 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21032202033 its reverse (33020223012), we get a palindrome (54052425045).

The spelling of 21032202033 in words is "twenty-one billion, thirty-two million, two hundred two thousand, thirty-three".