212078144212 has 48 divisors (see below), whose sum is σ = 415870705152. Its totient is φ = 93816154080.

The previous prime is 212078144197. The next prime is 212078144251. The reversal of 212078144212 is 212441870212.

212078144212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 188688 + ... + 678055.

It is an arithmetic number, because the mean of its divisors is an integer number (8663973024).

Almost surely, 2^212078144212 is an apocalyptic number.

212078144212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212078144212 is a deficient number, since it is larger than the sum of its proper divisors (203792560940).

212078144212 is a wasteful number, since it uses less digits than its factorization.

212078144212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866908 (or 866906 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 212078144212 in words is "two hundred twelve billion, seventy-eight million, one hundred forty-four thousand, two hundred twelve".