33313130004221 has 4 divisors (see below), whose sum is σ = 33313762076700. Its totient is φ = 33312497931744.

The previous prime is 33313130004191. The next prime is 33313130004247. The reversal of 33313130004221 is 12240003131333.

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 20008042111225 + 13305087892996 = 4473035^2 + 3647614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33313130004221 is a prime.

It is a super-2 number, since 2×33313130004221² (a number of 28 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 (33313130000221) 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, 315957176 + ... + 316062593.

It is an arithmetic number, because the mean of its divisors is an integer number (8328440519175).

Almost surely, 2^{33313130004221} is an apocalyptic number.

It is an amenable number.

33313130004221 is a deficient number, since it is larger than the sum of its proper divisors (632072479).

33313130004221 is an equidigital number, since it uses as much as digits as its factorization.

33313130004221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632072478.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 33313130004221 its reverse (12240003131333), we get a palindrome (45553133135554).

The spelling of 33313130004221 in words is "thirty-three trillion, three hundred thirteen billion, one hundred thirty million, four thousand, two hundred twenty-one".