211552412 has 6 divisors (see below), whose sum is σ = 370216728. Its totient is φ = 105776204.

The previous prime is 211552399. The next prime is 211552417. The reversal of 211552412 is 214255112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211552417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26444048 + ... + 26444055.

It is an arithmetic number, because the mean of its divisors is an integer number (61702788).

Almost surely, 2^211552412 is an apocalyptic number.

It is an amenable number.

211552412 is a deficient number, since it is larger than the sum of its proper divisors (158664316).

211552412 is a wasteful number, since it uses less digits than its factorization.

211552412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52888107 (or 52888105 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 211552412 is about 14544.8414223050. The cubic root of 211552412 is about 595.8532700367.

The spelling of 211552412 in words is "two hundred eleven million, five hundred fifty-two thousand, four hundred twelve".