20033212 has 18 divisors (see below), whose sum is σ = 35534408. Its totient is φ = 9882312.

The previous prime is 20033203. The next prime is 20033213. The reversal of 20033212 is 21233002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20033192 and 20033201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27193 + ... + 27919.

Almost surely, 2^20033212 is an apocalyptic number.

It is an amenable number.

20033212 is a deficient number, since it is larger than the sum of its proper divisors (15501196).

20033212 is an equidigital number, since it uses as much as digits as its factorization.

20033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20033212 is about 4475.8476292206. The cubic root of 20033212 is about 271.5919306297.

Adding to 20033212 its reverse (21233002), we get a palindrome (41266214).

The spelling of 20033212 in words is "twenty million, thirty-three thousand, two hundred twelve".