33321212121 has 8 divisors (see below), whose sum is σ = 44963563680. Its totient is φ = 21946500992.

The previous prime is 33321212101. The next prime is 33321212149. The reversal of 33321212121 is 12121212333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33321212121 - 2¹¹ = 33321210073 is a prime.

It is a super-2 number, since 2×33321212121² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33321212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66909816 + ... + 66910313.

It is an arithmetic number, because the mean of its divisors is an integer number (5620445460).

Almost surely, 2^33321212121 is an apocalyptic number.

It is an amenable number.

33321212121 is a deficient number, since it is larger than the sum of its proper divisors (11642351559).

33321212121 is a wasteful number, since it uses less digits than its factorization.

33321212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133820215.

The product of its digits is 432, while the sum is 21.

Adding to 33321212121 its reverse (12121212333), we get a palindrome (45442424454).

The spelling of 33321212121 in words is "thirty-three billion, three hundred twenty-one million, two hundred twelve thousand, one hundred twenty-one".