33210220121 has 8 divisors (see below), whose sum is σ = 35862309504. Its totient is φ = 30572053200.

The previous prime is 33210220111. The next prime is 33210220139. The reversal of 33210220121 is 12102201233.

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

It is a de Polignac number, because none of the positive numbers 2^k-33210220121 is a prime.

It is a super-2 number, since 2×33210220121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33210220121.

It is not an unprimeable number, because it can be changed into a prime (33210220111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475655 + ... + 3485196.

It is an arithmetic number, because the mean of its divisors is an integer number (4482788688).

Almost surely, 2^33210220121 is an apocalyptic number.

It is an amenable number.

33210220121 is a deficient number, since it is larger than the sum of its proper divisors (2652089383).

33210220121 is a wasteful number, since it uses less digits than its factorization.

33210220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961231.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33210220121 its reverse (12102201233), we get a palindrome (45312421354).

The spelling of 33210220121 in words is "thirty-three billion, two hundred ten million, two hundred twenty thousand, one hundred twenty-one".