33212203121 has 4 divisors (see below), whose sum is σ = 34283564544. Its totient is φ = 32140841700.

The previous prime is 33212203109. The next prime is 33212203133. The reversal of 33212203121 is 12130221233.

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 an interprime number because it is at equal distance from previous prime (33212203109) and next prime (33212203133).

It is a cyclic number.

It is not a de Polignac number, because 33212203121 - 2¹⁰ = 33212202097 is a prime.

It is a super-3 number, since 3×33212203121³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33212203093 and 33212203102.

It is not an unprimeable number, because it can be changed into a prime (33212203421) 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 3 ways as a sum of consecutive naturals, for example, 535680665 + ... + 535680726.

It is an arithmetic number, because the mean of its divisors is an integer number (8570891136).

Almost surely, 2^33212203121 is an apocalyptic number.

33212203121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33212203121 is a deficient number, since it is larger than the sum of its proper divisors (1071361423).

33212203121 is a wasteful number, since it uses less digits than its factorization.

33212203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071361422.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 33212203121 its reverse (12130221233), we get a palindrome (45342424354).

The spelling of 33212203121 in words is "thirty-three billion, two hundred twelve million, two hundred three thousand, one hundred twenty-one".