33212801 has 4 divisors (see below), whose sum is σ = 34358100. Its totient is φ = 32067504.

The previous prime is 33212797. The next prime is 33212807. The reversal of 33212801 is 10821233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10821233 = 47 ⋅230239.

It can be written as a sum of positive squares in 2 ways, for example, as 5755201 + 27457600 = 2399^2 + 5240^2 .

It is not a de Polignac number, because 33212801 - 2² = 33212797 is a prime.

It is a super-2 number, since 2×33212801² = 2206180300531202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33212807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572606 + ... + 572663.

It is an arithmetic number, because the mean of its divisors is an integer number (8589525).

Almost surely, 2^33212801 is an apocalyptic number.

It is an amenable number.

33212801 is a deficient number, since it is larger than the sum of its proper divisors (1145299).

33212801 is a wasteful number, since it uses less digits than its factorization.

33212801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145298.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 33212801 is about 5763.0548322916. The cubic root of 33212801 is about 321.4414174102.

The spelling of 33212801 in words is "thirty-three million, two hundred twelve thousand, eight hundred one".