33396121 has 10 divisors (see below), whose sum is σ = 36751610. Its totient is φ = 30346800.

The previous prime is 33396119. The next prime is 33396127. The reversal of 33396121 is 12169333.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 3748096 = 5445^2 + 1936^2 .

It is not a de Polignac number, because 33396121 - 2¹ = 33396119 is a prime.

It is a super-2 number, since 2×33396121² = 2230601795693282, which 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 33396121.

It is not an unprimeable number, because it can be changed into a prime (33396127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13501 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (3675161).

Almost surely, 2^33396121 is an apocalyptic number.

It is an amenable number.

33396121 is a deficient number, since it is larger than the sum of its proper divisors (3355489).

33396121 is an frugal number, since it uses more digits than its factorization.

33396121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 2292 counting only the distinct ones).

The product of its digits is 2916, while the sum is 28.

The square root of 33396121 is about 5778.9377051496. The cubic root of 33396121 is about 322.0317375453.

The spelling of 33396121 in words is "thirty-three million, three hundred ninety-six thousand, one hundred twenty-one".