212011430 has 16 divisors (see below), whose sum is σ = 383033664. Its totient is φ = 84490560.

The previous prime is 212011427. The next prime is 212011433. The reversal of 212011430 is 34110212.

It is an interprime number because it is at equal distance from previous prime (212011427) and next prime (212011433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011433) 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, 36407 + ... + 41826.

It is an arithmetic number, because the mean of its divisors is an integer number (23939604).

Almost surely, 2^212011430 is an apocalyptic number.

212011430 is a deficient number, since it is larger than the sum of its proper divisors (171022234).

212011430 is a wasteful number, since it uses less digits than its factorization.

212011430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78511.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212011430 is about 14560.6122810821. The cubic root of 212011430 is about 596.2839116237.

Adding to 212011430 its reverse (34110212), we get a palindrome (246121642).

The spelling of 212011430 in words is "two hundred twelve million, eleven thousand, four hundred thirty".