33232212021 has 16 divisors (see below), whose sum is σ = 45043013888. Its totient is φ = 21788222400.

The previous prime is 33232212007. The next prime is 33232212023. The reversal of 33232212021 is 12021223233.

It is a happy number.

It is not a de Polignac number, because 33232212021 - 2⁵ = 33232211989 is a prime.

It is a super-2 number, since 2×33232212021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33232212023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797195 + ... + 1815591.

It is an arithmetic number, because the mean of its divisors is an integer number (2815188368).

Almost surely, 2^33232212021 is an apocalyptic number.

It is an amenable number.

33232212021 is a deficient number, since it is larger than the sum of its proper divisors (11810801867).

33232212021 is a wasteful number, since it uses less digits than its factorization.

33232212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28332.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33232212021 its reverse (12021223233), we get a palindrome (45253435254).

The spelling of 33232212021 in words is "thirty-three billion, two hundred thirty-two million, two hundred twelve thousand, twenty-one".