1211150 has 12 divisors (see below), whose sum is σ = 2252832. Its totient is φ = 484440.

The previous prime is 1211141. The next prime is 1211167. The reversal of 1211150 is 511121.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 12062 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (187736).

2^1211150 is an apocalyptic number.

1211150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211150 is a deficient number, since it is larger than the sum of its proper divisors (1041682).

1211150 is a wasteful number, since it uses less digits than its factorization.

1211150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24235 (or 24230 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1211150 is about 1100.5226031300. The cubic root of 1211150 is about 106.5939717359.

Adding to 1211150 its reverse (511121), we get a palindrome (1722271).

It can be divided in two parts, 12111 and 50, that multiplied together give a triangular number (605550 = T₁₁₀₀).

The spelling of 1211150 in words is "one million, two hundred eleven thousand, one hundred fifty".