33010220021 has 8 divisors (see below), whose sum is σ = 34269178080. Its totient is φ = 31759306992.

The previous prime is 33010219969. The next prime is 33010220027. The reversal of 33010220021 is 12002201033.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33010220021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33010219978 and 33010220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33010220027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2002895 + ... + 2019308.

It is an arithmetic number, because the mean of its divisors is an integer number (4283647260).

Almost surely, 2^33010220021 is an apocalyptic number.

It is an amenable number.

33010220021 is a deficient number, since it is larger than the sum of its proper divisors (1258958059).

33010220021 is a wasteful number, since it uses less digits than its factorization.

33010220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022515.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 33010220021 its reverse (12002201033), we get a palindrome (45012421054).

The spelling of 33010220021 in words is "thirty-three billion, ten million, two hundred twenty thousand, twenty-one".