33212323121 has 4 divisors (see below), whose sum is σ = 33212842992. Its totient is φ = 33211803252.

The previous prime is 33212323099. The next prime is 33212323189. The reversal of 33212323121 is 12132321233.

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 33212323121 - 2¹⁸ = 33212060977 is a prime.

It is a super-2 number, since 2×33212323121² (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 (33212323321) 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, 148055 + ... + 297228.

It is an arithmetic number, because the mean of its divisors is an integer number (8303210748).

Almost surely, 2^33212323121 is an apocalyptic number.

It is an amenable number.

33212323121 is a deficient number, since it is larger than the sum of its proper divisors (519871).

33212323121 is an equidigital number, since it uses as much as digits as its factorization.

33212323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519870.

The product of its digits is 1296, while the sum is 23.

Adding to 33212323121 its reverse (12132321233), we get a palindrome (45344644354).

The spelling of 33212323121 in words is "thirty-three billion, two hundred twelve million, three hundred twenty-three thousand, one hundred twenty-one".