212115799 has 8 divisors (see below), whose sum is σ = 242536320. Its totient is φ = 181724856.

The previous prime is 212115793. The next prime is 212115809. The reversal of 212115799 is 997511212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212115799 - 2¹³ = 212107607 is a prime.

It is a super-2 number, since 2×212115799² = 89986224370816802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212115793) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11052 + ... + 23374.

It is an arithmetic number, because the mean of its divisors is an integer number (30317040).

Almost surely, 2^212115799 is an apocalyptic number.

212115799 is a deficient number, since it is larger than the sum of its proper divisors (30420521).

212115799 is a wasteful number, since it uses less digits than its factorization.

212115799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14789.

The product of its digits is 11340, while the sum is 37.

The square root of 212115799 is about 14564.1957896754. The cubic root of 212115799 is about 596.3817417992.

The spelling of 212115799 in words is "two hundred twelve million, one hundred fifteen thousand, seven hundred ninety-nine".