33221210212313 has 4 divisors (see below), whose sum is σ = 33222323814708. Its totient is φ = 33220096609920.

The previous prime is 33221210212291. The next prime is 33221210212321. The reversal of 33221210212313 is 31321201212233.

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 13741018644544 + 19480191567769 = 3706888^2 + 4413637^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221210212313 - 2²⁴ = 33221193435097 is a prime.

It is a super-2 number, since 2×33221210212313² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33221110212313) 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, 556756448 + ... + 556816113.

It is an arithmetic number, because the mean of its divisors is an integer number (8305580953677).

Almost surely, 2^{33221210212313} is an apocalyptic number.

It is an amenable number.

33221210212313 is a deficient number, since it is larger than the sum of its proper divisors (1113602395).

33221210212313 is a wasteful number, since it uses less digits than its factorization.

33221210212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113602394.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 33221210212313 its reverse (31321201212233), we get a palindrome (64542411424546).

The spelling of 33221210212313 in words is "thirty-three trillion, two hundred twenty-one billion, two hundred ten million, two hundred twelve thousand, three hundred thirteen".