33332113021 has 4 divisors (see below), whose sum is σ = 33662134044. Its totient is φ = 33002092000.

The previous prime is 33332112949. The next prime is 33332113049. The reversal of 33332113021 is 12031123333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12031123333 = 101 ⋅119120033.

It can be written as a sum of positive squares in 2 ways, for example, as 15810296121 + 17521816900 = 125739^2 + 132370^2 .

It is a cyclic number.

It is not a de Polignac number, because 33332113021 - 2⁷ = 33332112893 is a prime.

It is a super-2 number, since 2×33332113021² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33332112983 and 33332113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33332123021) 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, 165010360 + ... + 165010561.

It is an arithmetic number, because the mean of its divisors is an integer number (8415533511).

Almost surely, 2^33332113021 is an apocalyptic number.

It is an amenable number.

33332113021 is a deficient number, since it is larger than the sum of its proper divisors (330021023).

33332113021 is a wasteful number, since it uses less digits than its factorization.

33332113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330021022.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33332113021 its reverse (12031123333), we get a palindrome (45363236354).

The spelling of 33332113021 in words is "thirty-three billion, three hundred thirty-two million, one hundred thirteen thousand, twenty-one".