33200121 has 4 divisors (see below), whose sum is σ = 44266832. Its totient is φ = 22133412.

The previous prime is 33200113. The next prime is 33200131. The reversal of 33200121 is 12100233.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12100233 = 3 ⋅4033411.

It is not a de Polignac number, because 33200121 - 2³ = 33200113 is a prime.

It is a super-2 number, since 2×33200121² = 2204496068829282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33200097 and 33200106.

It is not an unprimeable number, because it can be changed into a prime (33200131) 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, 5533351 + ... + 5533356.

It is an arithmetic number, because the mean of its divisors is an integer number (11066708).

Almost surely, 2^33200121 is an apocalyptic number.

It is an amenable number.

33200121 is a deficient number, since it is larger than the sum of its proper divisors (11066711).

33200121 is a wasteful number, since it uses less digits than its factorization.

33200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066710.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 33200121 is about 5761.9546162739. The cubic root of 33200121 is about 321.4005055142.

Adding to 33200121 its reverse (12100233), we get a palindrome (45300354).

The spelling of 33200121 in words is "thirty-three million, two hundred thousand, one hundred twenty-one".