33045045021 has 12 divisors (see below), whose sum is σ = 47737280448. Its totient is φ = 22027469064.

The previous prime is 33045044993. The next prime is 33045045023. The reversal of 33045045021 is 12054054033.

It is not a de Polignac number, because 33045045021 - 2²⁷ = 32910827293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33045045023) 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, 129975 + ... + 288068.

It is an arithmetic number, because the mean of its divisors is an integer number (3978106704).

Almost surely, 2^33045045021 is an apocalyptic number.

It is an amenable number.

33045045021 is a deficient number, since it is larger than the sum of its proper divisors (14692235427).

33045045021 is a wasteful number, since it uses less digits than its factorization.

33045045021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426832 (or 426829 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 33045045021 its reverse (12054054033), we get a palindrome (45099099054).

The spelling of 33045045021 in words is "thirty-three billion, forty-five million, forty-five thousand, twenty-one".