212123297 has 8 divisors (see below), whose sum is σ = 231846912. Its totient is φ = 193204800.

The previous prime is 212123251. The next prime is 212123321. The reversal of 212123297 is 792321212.

212123297 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 a cyclic number.

It is not a de Polignac number, because 212123297 - 2¹⁴ = 212106913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212123237) 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, 200729 + ... + 201782.

It is an arithmetic number, because the mean of its divisors is an integer number (28980864).

Almost surely, 2^212123297 is an apocalyptic number.

It is an amenable number.

212123297 is a deficient number, since it is larger than the sum of its proper divisors (19723615).

212123297 is a wasteful number, since it uses less digits than its factorization.

212123297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402559.

The product of its digits is 3024, while the sum is 29.

The square root of 212123297 is about 14564.4531994854. The cubic root of 212123297 is about 596.3887688062.

The spelling of 212123297 in words is "two hundred twelve million, one hundred twenty-three thousand, two hundred ninety-seven".