33033001211221 has 4 divisors (see below), whose sum is σ = 36036001321344. Its totient is φ = 30030001101100.

The previous prime is 33033001211213. The next prime is 33033001211257. The reversal of 33033001211221 is 12211210033033.

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 not a de Polignac number, because 33033001211221 - 2³ = 33033001211213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33033001211192 and 33033001211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33033001211201) 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, 1501500055045 + ... + 1501500055066.

It is an arithmetic number, because the mean of its divisors is an integer number (9009000330336).

Almost surely, 2^{33033001211221} is an apocalyptic number.

It is an amenable number.

33033001211221 is a deficient number, since it is larger than the sum of its proper divisors (3003000110123).

33033001211221 is a wasteful number, since it uses less digits than its factorization.

33033001211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003000110122.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 33033001211221 its reverse (12211210033033), we get a palindrome (45244211244254).

The spelling of 33033001211221 in words is "thirty-three trillion, thirty-three billion, one million, two hundred eleven thousand, two hundred twenty-one".