33000221413 has 4 divisors (see below), whose sum is σ = 33051227040. Its totient is φ = 32949215788.

The previous prime is 33000221399. The next prime is 33000221417. The reversal of 33000221413 is 31412200033.

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 33000221413 - 2⁹ = 33000220901 is a prime.

It is a super-2 number, since 2×33000221413² (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 (33000221417) 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, 25501843 + ... + 25503136.

It is an arithmetic number, because the mean of its divisors is an integer number (8262806760).

Almost surely, 2^33000221413 is an apocalyptic number.

It is an amenable number.

33000221413 is a deficient number, since it is larger than the sum of its proper divisors (51005627).

33000221413 is an equidigital number, since it uses as much as digits as its factorization.

33000221413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51005626.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33000221413 its reverse (31412200033), we get a palindrome (64412421446).

The spelling of 33000221413 in words is "thirty-three billion, two hundred twenty-one thousand, four hundred thirteen".