33001132213021 has 4 divisors (see below), whose sum is σ = 37715579672032. Its totient is φ = 28286684754012.

The previous prime is 33001132212989. The next prime is 33001132213033. The reversal of 33001132213021 is 12031223110033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33001132213021 - 2⁵ = 33001132212989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33001132212983 and 33001132213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33001132216021) 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, 2357223729495 + ... + 2357223729508.

It is an arithmetic number, because the mean of its divisors is an integer number (9428894918008).

Almost surely, 2^{33001132213021} is an apocalyptic number.

It is an amenable number.

33001132213021 is a deficient number, since it is larger than the sum of its proper divisors (4714447459011).

33001132213021 is an equidigital number, since it uses as much as digits as its factorization.

33001132213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714447459010.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 33001132213021 its reverse (12031223110033), we get a palindrome (45032355323054).

The spelling of 33001132213021 in words is "thirty-three trillion, one billion, one hundred thirty-two million, two hundred thirteen thousand, twenty-one".