212290 has 32 divisors (see below), whose sum is σ = 435456. Its totient is φ = 73920.

The previous prime is 212281. The next prime is 212293. The reversal of 212290 is 92212.

It is a happy number.

212290 is nontrivially palindromic in base 12.

212290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

212290 is an undulating number in base 12.

It is not an unprimeable number, because it can be changed into a prime (212293) 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, 2955 + ... + 3025.

It is an arithmetic number, because the mean of its divisors is an integer number (13608).

2²¹²²⁹⁰ is an apocalyptic number.

212290 is an abundant number, since it is smaller than the sum of its proper divisors (223166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212290 is a wasteful number, since it uses less digits than its factorization.

212290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 212290 is about 460.7493895818. The cubic root of 212290 is about 59.6544957472.

The spelling of 212290 in words is "two hundred twelve thousand, two hundred ninety".