212110078 has 4 divisors (see below), whose sum is σ = 318165120. Its totient is φ = 106055038.

The previous prime is 212110001. The next prime is 212110079. The reversal of 212110078 is 870011212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53027518 + ... + 53027521.

It is an arithmetic number, because the mean of its divisors is an integer number (79541280).

Almost surely, 2^212110078 is an apocalyptic number.

212110078 is a deficient number, since it is larger than the sum of its proper divisors (106055042).

212110078 is a wasteful number, since it uses less digits than its factorization.

212110078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106055041.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 212110078 is about 14563.9993820379. Note that the first 3 decimals coincide. The cubic root of 212110078 is about 596.3763800571.

The spelling of 212110078 in words is "two hundred twelve million, one hundred ten thousand, seventy-eight".