1210218 has 16 divisors (see below), whose sum is σ = 2431296. Its totient is φ = 401600.

The previous prime is 1210211. The next prime is 1210229. The reversal of 1210218 is 8120121.

It is a junction number, because it is equal to n+sod(n) for n = 1210197 and 1210206.

It is not an unprimeable number, because it can be changed into a prime (1210211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155 + ... + 2657.

It is an arithmetic number, because the mean of its divisors is an integer number (151956).

2^1210218 is an apocalyptic number.

1210218 is an abundant number, since it is smaller than the sum of its proper divisors (1221078).

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

1210218 is a wasteful number, since it uses less digits than its factorization.

1210218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1210218 is about 1100.0990864463. The cubic root of 1210218 is about 106.5666227769.

Adding to 1210218 its reverse (8120121), we get a palindrome (9330339).

Subtracting 1210218 from its reverse (8120121), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1210218 in words is "one million, two hundred ten thousand, two hundred eighteen".