33221340031 has 4 divisors (see below), whose sum is σ = 36241461864. Its totient is φ = 30201218200.

The previous prime is 33221340023. The next prime is 33221340043. The reversal of 33221340031 is 13004312233.

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

It is a cyclic number.

It is not a de Polignac number, because 33221340031 - 2³ = 33221340023 is a prime.

It is a super-2 number, since 2×33221340031² (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 = 33221339984 and 33221340011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221340071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1510060900 + ... + 1510060921.

It is an arithmetic number, because the mean of its divisors is an integer number (9060365466).

Almost surely, 2^33221340031 is an apocalyptic number.

33221340031 is a deficient number, since it is larger than the sum of its proper divisors (3020121833).

33221340031 is a wasteful number, since it uses less digits than its factorization.

33221340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020121832.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 33221340031 its reverse (13004312233), we get a palindrome (46225652264).

The spelling of 33221340031 in words is "thirty-three billion, two hundred twenty-one million, three hundred forty thousand, thirty-one".