212055117 has 8 divisors (see below), whose sum is σ = 288756096. Its totient is φ = 138362112.

The previous prime is 212055113. The next prime is 212055131. The reversal of 212055117 is 711550212.

212055117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212055117 - 2² = 212055113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212055113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751828 + ... + 752109.

It is an arithmetic number, because the mean of its divisors is an integer number (36094512).

Almost surely, 2^212055117 is an apocalyptic number.

It is an amenable number.

212055117 is a deficient number, since it is larger than the sum of its proper divisors (76700979).

212055117 is a wasteful number, since it uses less digits than its factorization.

212055117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503987.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 212055117 is about 14562.1123811074. The cubic root of 212055117 is about 596.3248654945.

The spelling of 212055117 in words is "two hundred twelve million, fifty-five thousand, one hundred seventeen".