212233136 has 20 divisors (see below), whose sum is σ = 425382000. Its totient is φ = 102457152.

The previous prime is 212233103. The next prime is 212233141. The reversal of 212233136 is 631332212.

212233136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228236 + ... + 229163.

It is an arithmetic number, because the mean of its divisors is an integer number (21269100).

Almost surely, 2^212233136 is an apocalyptic number.

It is an amenable number.

212233136 is an abundant number, since it is smaller than the sum of its proper divisors (213148864).

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

212233136 is a wasteful number, since it uses less digits than its factorization.

212233136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457436 (or 457430 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 212233136 is about 14568.2235018550. The cubic root of 212233136 is about 596.4916892044.

Adding to 212233136 its reverse (631332212), we get a palindrome (843565348).

The spelling of 212233136 in words is "two hundred twelve million, two hundred thirty-three thousand, one hundred thirty-six".