33210121 has 8 divisors (see below), whose sum is σ = 38183040. Its totient is φ = 28294368.

The previous prime is 33210101. The next prime is 33210173. The reversal of 33210121 is 12101233.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33210121 is a prime.

It is a super-2 number, since 2×33210121² = 2205824273669282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33210101) 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, 13036 + ... + 15373.

It is an arithmetic number, because the mean of its divisors is an integer number (4772880).

Almost surely, 2^33210121 is an apocalyptic number.

It is an amenable number.

33210121 is a deficient number, since it is larger than the sum of its proper divisors (4972919).

33210121 is a wasteful number, since it uses less digits than its factorization.

33210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28583.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 33210121 is about 5762.8223120273. The cubic root of 33210121 is about 321.4327712843.

Adding to 33210121 its reverse (12101233), we get a palindrome (45311354).

The spelling of 33210121 in words is "thirty-three million, two hundred ten thousand, one hundred twenty-one".