20233212 has 48 divisors (see below), whose sum is σ = 48580224. Its totient is φ = 6552000.

The previous prime is 20233207. The next prime is 20233231. The reversal of 20233212 is 21233202.

It is a junction number, because it is equal to n+sod(n) for n = 20233191 and 20233200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95787 + ... + 95997.

It is an arithmetic number, because the mean of its divisors is an integer number (1012088).

Almost surely, 2^20233212 is an apocalyptic number.

It is an amenable number.

20233212 is an abundant number, since it is smaller than the sum of its proper divisors (28347012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20233212 is a wasteful number, since it uses less digits than its factorization.

20233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20233212 is about 4498.1342798987. The cubic root of 20233212 is about 272.4927450864.

Adding to 20233212 its reverse (21233202), we get a palindrome (41466414).

The spelling of 20233212 in words is "twenty million, two hundred thirty-three thousand, two hundred twelve".