212430999 has 8 divisors (see below), whose sum is σ = 308990592. Its totient is φ = 128746040.

The previous prime is 212430991. The next prime is 212431007. The reversal of 212430999 is 999034212.

212430999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212430991) and next prime (212431007).

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 212430999 - 2³ = 212430991 is a prime.

It is a super-2 number, since 2×212430999² = 90253858672276002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430991) 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, 3218619 + ... + 3218684.

It is an arithmetic number, because the mean of its divisors is an integer number (38623824).

Almost surely, 2^212430999 is an apocalyptic number.

212430999 is a deficient number, since it is larger than the sum of its proper divisors (96559593).

212430999 is a wasteful number, since it uses less digits than its factorization.

212430999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437317.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 212430999 is about 14575.0128301830. The cubic root of 212430999 is about 596.6769995332.

The spelling of 212430999 in words is "two hundred twelve million, four hundred thirty thousand, nine hundred ninety-nine".