211330412 has 6 divisors (see below), whose sum is σ = 369828228. Its totient is φ = 105665204.

The previous prime is 211330403. The next prime is 211330429. The reversal of 211330412 is 214033112.

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 as a sum of consecutive naturals, namely, 26416298 + ... + 26416305.

It is an arithmetic number, because the mean of its divisors is an integer number (61638038).

Almost surely, 2^211330412 is an apocalyptic number.

It is an amenable number.

211330412 is a deficient number, since it is larger than the sum of its proper divisors (158497816).

211330412 is a wasteful number, since it uses less digits than its factorization.

211330412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52832607 (or 52832605 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 211330412 is about 14537.2078474513. The cubic root of 211330412 is about 595.6447705253.

Adding to 211330412 its reverse (214033112), we get a palindrome (425363524).

The spelling of 211330412 in words is "two hundred eleven million, three hundred thirty thousand, four hundred twelve".