1121210 has 8 divisors (see below), whose sum is σ = 2018196. Its totient is φ = 448480.

The previous prime is 1121203. The next prime is 1121221. The reversal of 1121210 is 121211.

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 139129 = 991^2 + 373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1121210² = 2514223728200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56051 + ... + 56070.

2^1121210 is an apocalyptic number.

1121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121210 is a deficient number, since it is larger than the sum of its proper divisors (896986).

1121210 is a wasteful number, since it uses less digits than its factorization.

1121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112128.

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

The square root of 1121210 is about 1058.8720413723. The cubic root of 1121210 is about 103.8872668979.

Adding to 1121210 its reverse (121211), we get a palindrome (1242421).

Subtracting from 1121210 its reverse (121211), we obtain a palindrome (999999).

It can be divided in two parts, 1121 and 210, that added together give a palindrome (1331).

The spelling of 1121210 in words is "one million, one hundred twenty-one thousand, two hundred ten".