33032222021 has 4 divisors (see below), whose sum is σ = 33034024044. Its totient is φ = 33030420000.

The previous prime is 33032222017. The next prime is 33032222063. The reversal of 33032222021 is 12022223033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12022223033 = 157 ⋅76574669.

It can be written as a sum of positive squares in 2 ways, for example, as 30664912996 + 2367309025 = 175114^2 + 48655^2 .

It is a cyclic number.

It is not a de Polignac number, because 33032222021 - 2² = 33032222017 is a prime.

It is a super-2 number, since 2×33032222021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33032221984 and 33032222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33032222221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873230 + ... + 910271.

It is an arithmetic number, because the mean of its divisors is an integer number (8258506011).

Almost surely, 2^33032222021 is an apocalyptic number.

It is an amenable number.

33032222021 is a deficient number, since it is larger than the sum of its proper divisors (1802023).

33032222021 is a wasteful number, since it uses less digits than its factorization.

33032222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802022.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33032222021 its reverse (12022223033), we get a palindrome (45054445054).

The spelling of 33032222021 in words is "thirty-three billion, thirty-two million, two hundred twenty-two thousand, twenty-one".