1211882 has 16 divisors (see below), whose sum is σ = 2099520. Its totient is φ = 513888.

The previous prime is 1211863. The next prime is 1211897. The reversal of 1211882 is 2881121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 1902.

It is an arithmetic number, because the mean of its divisors is an integer number (131220).

2^1211882 is an apocalyptic number.

1211882 is a deficient number, since it is larger than the sum of its proper divisors (887638).

1211882 is a wasteful number, since it uses less digits than its factorization.

1211882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925.

The product of its digits is 256, while the sum is 23.

The square root of 1211882 is about 1100.8551221664. The cubic root of 1211882 is about 106.6154419841.

It can be divided in two parts, 121 and 1882, that multiplied together give a palindrome (227722).

The spelling of 1211882 in words is "one million, two hundred eleven thousand, eight hundred eighty-two".