212011323178 has 16 divisors (see below), whose sum is σ = 329074018560. Its totient is φ = 102322004400.

The previous prime is 212011323133. The next prime is 212011323179. The reversal of 212011323178 is 871323110212.

212011323178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212011323179) 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 7 ways as a sum of consecutive naturals, for example, 292758 + ... + 713953.

It is an arithmetic number, because the mean of its divisors is an integer number (20567126160).

Almost surely, 2^212011323178 is an apocalyptic number.

212011323178 is a deficient number, since it is larger than the sum of its proper divisors (117062695382).

212011323178 is a wasteful number, since it uses less digits than its factorization.

212011323178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010373.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 212011323178 in words is "two hundred twelve billion, eleven million, three hundred twenty-three thousand, one hundred seventy-eight".