33221312102213 has 4 divisors (see below), whose sum is σ = 33360313408320. Its totient is φ = 33082310796108.

The previous prime is 33221312102159. The next prime is 33221312102339. The reversal of 33221312102213 is 31220121312233.

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 33221312102213 - 2¹⁸ = 33221311840069 is a prime.

It is a super-2 number, since 2×33221312102213² (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 (33221312105213) 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, 69500652695 + ... + 69500653172.

It is an arithmetic number, because the mean of its divisors is an integer number (8340078352080).

Almost surely, 2^{33221312102213} is an apocalyptic number.

It is an amenable number.

33221312102213 is a deficient number, since it is larger than the sum of its proper divisors (139001306107).

33221312102213 is a wasteful number, since it uses less digits than its factorization.

33221312102213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139001306106.

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

Adding to 33221312102213 its reverse (31220121312233), we get a palindrome (64441433414446).

The spelling of 33221312102213 in words is "thirty-three trillion, two hundred twenty-one billion, three hundred twelve million, one hundred two thousand, two hundred thirteen".