211494219 has 16 divisors (see below), whose sum is σ = 288645120. Its totient is φ = 137683520.

The previous prime is 211494211. The next prime is 211494271. The reversal of 211494219 is 912494112.

211494219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211494219 - 2³ = 211494211 is a prime.

It is a super-2 number, since 2×211494219² = 89459609340839922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211494219.

It is not an unprimeable number, because it can be changed into a prime (211494211) 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, 72022 + ... + 74900.

It is an arithmetic number, because the mean of its divisors is an integer number (18040320).

Almost surely, 2^211494219 is an apocalyptic number.

211494219 is a deficient number, since it is larger than the sum of its proper divisors (77150901).

211494219 is a wasteful number, since it uses less digits than its factorization.

211494219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450.

The product of its digits is 5184, while the sum is 33.

The square root of 211494219 is about 14542.8408160167. The cubic root of 211494219 is about 595.7986300401.

The spelling of 211494219 in words is "two hundred eleven million, four hundred ninety-four thousand, two hundred nineteen".