33231220020233 has 4 divisors (see below), whose sum is σ = 35185997668500. Its totient is φ = 31276442371968.

The previous prime is 33231220020221. The next prime is 33231220020259. The reversal of 33231220020233 is 33202002213233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14730451252729 + 18500768767504 = 3838027^2 + 4301252^2 .

It is a cyclic number.

It is not a de Polignac number, because 33231220020233 - 2⁴ = 33231220020217 is a prime.

It is a super-2 number, since 2×33231220020233² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33231220020263) 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, 977388824108 + ... + 977388824141.

It is an arithmetic number, because the mean of its divisors is an integer number (8796499417125).

Almost surely, 2^{33231220020233} is an apocalyptic number.

It is an amenable number.

33231220020233 is a deficient number, since it is larger than the sum of its proper divisors (1954777648267).

33231220020233 is a wasteful number, since it uses less digits than its factorization.

33231220020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954777648266.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 33231220020233 its reverse (33202002213233), we get a palindrome (66433222233466).

The spelling of 33231220020233 in words is "thirty-three trillion, two hundred thirty-one billion, two hundred twenty million, twenty thousand, two hundred thirty-three".