211204312 has 32 divisors (see below), whose sum is σ = 432709200. Its totient is φ = 95846400.

The previous prime is 211204309. The next prime is 211204319. The reversal of 211204312 is 213402112.

211204312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211204312² = 89214522814786688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211204319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66112 + ... + 69232.

Almost surely, 2^211204312 is an apocalyptic number.

211204312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211204312 is an abundant number, since it is smaller than the sum of its proper divisors (221504888).

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

211204312 is a wasteful number, since it uses less digits than its factorization.

211204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3903 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 211204312 is about 14532.8700537781. The cubic root of 211204312 is about 595.5262740135.

Adding to 211204312 its reverse (213402112), we get a palindrome (424606424).

The spelling of 211204312 in words is "two hundred eleven million, two hundred four thousand, three hundred twelve".