212084229 has 16 divisors (see below), whose sum is σ = 323538048. Its totient is φ = 121055232.

The previous prime is 212084183. The next prime is 212084233. The reversal of 212084229 is 922480212.

It is not a de Polignac number, because 212084229 - 2⁹ = 212083717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212084196 and 212084205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212080229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15349 + ... + 25685.

It is an arithmetic number, because the mean of its divisors is an integer number (20221128).

Almost surely, 2^212084229 is an apocalyptic number.

It is an amenable number.

212084229 is a deficient number, since it is larger than the sum of its proper divisors (111453819).

212084229 is a wasteful number, since it uses less digits than its factorization.

212084229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 212084229 is about 14563.1119270573. Note that the first 3 decimals coincide. The cubic root of 212084229 is about 596.3521530780.

The spelling of 212084229 in words is "two hundred twelve million, eighty-four thousand, two hundred twenty-nine".