1211102 has 4 divisors (see below), whose sum is σ = 1816656. Its totient is φ = 605550.

The previous prime is 1211087. The next prime is 1211141. The reversal of 1211102 is 2011121.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1211102.

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 as a sum of consecutive naturals, namely, 302774 + ... + 302777.

It is an arithmetic number, because the mean of its divisors is an integer number (454164).

2^1211102 is an apocalyptic number.

1211102 is a deficient number, since it is larger than the sum of its proper divisors (605554).

1211102 is an equidigital number, since it uses as much as digits as its factorization.

1211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605553.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1211102 is about 1100.5007950929. The cubic root of 1211102 is about 106.5925635486.

Adding to 1211102 its reverse (2011121), we get a palindrome (3222223).

The spelling of 1211102 in words is "one million, two hundred eleven thousand, one hundred two".