212000997 has 16 divisors (see below), whose sum is σ = 304693760. Its totient is φ = 130341312.

The previous prime is 212000963. The next prime is 212001001. The reversal of 212000997 is 799000212.

It is not a de Polignac number, because 212000997 - 2⁸ = 212000741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59379 + ... + 62847.

It is an arithmetic number, because the mean of its divisors is an integer number (19043360).

Almost surely, 2^212000997 is an apocalyptic number.

It is an amenable number.

212000997 is a deficient number, since it is larger than the sum of its proper divisors (92692763).

212000997 is a wasteful number, since it uses less digits than its factorization.

212000997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 212000997 is about 14560.2540156413. The cubic root of 212000997 is about 596.2741304968.

The spelling of 212000997 in words is "two hundred twelve million, nine hundred ninety-seven", and thus it is an aban number.