211213332 has 60 divisors (see below), whose sum is σ = 602359296. Its totient is φ = 64002960.

The previous prime is 211213313. The next prime is 211213357. The reversal of 211213332 is 233312112.

It is a super-2 number, since 2×211213332² = 89222143229084448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 26068 + ... + 33195.

Almost surely, 2^211213332 is an apocalyptic number.

211213332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211213332 is an abundant number, since it is smaller than the sum of its proper divisors (391145964).

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

211213332 is a wasteful number, since it uses less digits than its factorization.

211213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59290 (or 59279 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 211213332 is about 14533.1803814581. The cubic root of 211213332 is about 595.5347516979.

Adding to 211213332 its reverse (233312112), we get a palindrome (444525444).

The spelling of 211213332 in words is "two hundred eleven million, two hundred thirteen thousand, three hundred thirty-two".