212727155499 has 24 divisors (see below), whose sum is σ = 321631128000. Its totient is φ = 140492683656.

The previous prime is 212727155483. The next prime is 212727155507. The reversal of 212727155499 is 994551727212.

212727155499 is a `hidden beast` number, since 2 + 1 + 27 + 2 + 71 + 5 + 549 + 9 = 666.

212727155499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212727155499 - 2⁴ = 212727155483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212727155419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4064749 + ... + 4116750.

It is an arithmetic number, because the mean of its divisors is an integer number (13401297000).

Almost surely, 2^212727155499 is an apocalyptic number.

212727155499 is a deficient number, since it is larger than the sum of its proper divisors (108903972501).

212727155499 is an equidigital number, since it uses as much as digits as its factorization.

212727155499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8181621 (or 8181609 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 212727155499 in words is "two hundred twelve billion, seven hundred twenty-seven million, one hundred fifty-five thousand, four hundred ninety-nine".