212130219 has 32 divisors (see below), whose sum is σ = 339148800. Its totient is φ = 115312032.

The previous prime is 212130161. The next prime is 212130229. The reversal of 212130219 is 912031212.

It is not a de Polignac number, because 212130219 - 2¹⁵ = 212097451 is a prime.

It is a super-2 number, since 2×212130219² = 89998459625975922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 212130195 and 212130204.

It is not an unprimeable number, because it can be changed into a prime (212130229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95014 + ... + 97220.

It is an arithmetic number, because the mean of its divisors is an integer number (10598400).

Almost surely, 2^212130219 is an apocalyptic number.

212130219 is a deficient number, since it is larger than the sum of its proper divisors (127018581).

212130219 is a wasteful number, since it uses less digits than its factorization.

212130219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 212130219 is about 14564.6908309102. The cubic root of 212130219 is about 596.3952558481.

The spelling of 212130219 in words is "two hundred twelve million, one hundred thirty thousand, two hundred nineteen".