212024997 has 12 divisors (see below), whose sum is σ = 306796620. Its totient is φ = 141101568.

The previous prime is 212024977. The next prime is 212024999. The reversal of 212024997 is 799420212.

It can be written as a sum of positive squares in 2 ways, for example, as 211091841 + 933156 = 14529^2 + 966^2 .

It is not a de Polignac number, because 212024997 - 2¹⁴ = 212008613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212024999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15222 + ... + 25607.

It is an arithmetic number, because the mean of its divisors is an integer number (25566385).

Almost surely, 2^212024997 is an apocalyptic number.

It is an amenable number.

212024997 is a deficient number, since it is larger than the sum of its proper divisors (94771623).

212024997 is a wasteful number, since it uses less digits than its factorization.

212024997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41412 (or 41409 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 212024997 is about 14561.0781537632. The cubic root of 212024997 is about 596.2966304525.

The spelling of 212024997 in words is "two hundred twelve million, twenty-four thousand, nine hundred ninety-seven".