33124222121 has 4 divisors (see below), whose sum is σ = 33894552912. Its totient is φ = 32353891332.

The previous prime is 33124222111. The next prime is 33124222127. The reversal of 33124222121 is 12122242133.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12122242133 = 21247 ⋅570539.

It is a cyclic number.

It is not a de Polignac number, because 33124222121 - 2⁶ = 33124222057 is a prime.

It is a super-2 number, since 2×33124222121² (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 (33124222127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385165331 + ... + 385165416.

It is an arithmetic number, because the mean of its divisors is an integer number (8473638228).

Almost surely, 2^33124222121 is an apocalyptic number.

It is an amenable number.

33124222121 is a deficient number, since it is larger than the sum of its proper divisors (770330791).

33124222121 is an equidigital number, since it uses as much as digits as its factorization.

33124222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770330790.

The product of its digits is 1152, while the sum is 23.

Adding to 33124222121 its reverse (12122242133), we get a palindrome (45246464254).

The spelling of 33124222121 in words is "thirty-three billion, one hundred twenty-four million, two hundred twenty-two thousand, one hundred twenty-one".