219122 has 6 divisors (see below), whose sum is σ = 329679. Its totient is φ = 109230.

The previous prime is 219119. The next prime is 219133. The reversal of 219122 is 221912.

219122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 109561 + 109561 = 331^2 + 331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=331.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 219122.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 219122.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 497 + ... + 827.

2²¹⁹¹²² is an apocalyptic number.

219122 is a deficient number, since it is larger than the sum of its proper divisors (110557).

219122 is an frugal number, since it uses more digits than its factorization.

219122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 333 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 219122 is about 468.1046891455. The cubic root of 219122 is about 60.2876924205.

Multiplying 219122 by its product of digits (72), we get a square (15776784 = 3972²).

The spelling of 219122 in words is "two hundred nineteen thousand, one hundred twenty-two".