33332223121 has 4 divisors (see below), whose sum is σ = 33340303872. Its totient is φ = 33324142372.

The previous prime is 33332223109. The next prime is 33332223157. The reversal of 33332223121 is 12132223333.

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 a de Polignac number, because none of the positive numbers 2^k-33332223121 is a prime.

It is a super-2 number, since 2×33332223121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33332223521) 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, 4034185 + ... + 4042438.

It is an arithmetic number, because the mean of its divisors is an integer number (8335075968).

Almost surely, 2^33332223121 is an apocalyptic number.

It is an amenable number.

33332223121 is a deficient number, since it is larger than the sum of its proper divisors (8080751).

33332223121 is an equidigital number, since it uses as much as digits as its factorization.

33332223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080750.

The product of its digits is 3888, while the sum is 25.

Adding to 33332223121 its reverse (12132223333), we get a palindrome (45464446454).

The spelling of 33332223121 in words is "thirty-three billion, three hundred thirty-two million, two hundred twenty-three thousand, one hundred twenty-one".