211112122078 has 32 divisors (see below), whose sum is σ = 372112120800. Its totient is φ = 88558901760.

The previous prime is 211112121991. The next prime is 211112122079. The reversal of 211112122078 is 870221211112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112122079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1250226 + ... + 1409002.

It is an arithmetic number, because the mean of its divisors is an integer number (11628503775).

Almost surely, 2^211112122078 is an apocalyptic number.

211112122078 is a deficient number, since it is larger than the sum of its proper divisors (160999998722).

211112122078 is a wasteful number, since it uses less digits than its factorization.

211112122078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163452.

The product of its (nonzero) digits is 896, while the sum is 28.

The spelling of 211112122078 in words is "two hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, seventy-eight".