1221050 has 12 divisors (see below), whose sum is σ = 2271246. Its totient is φ = 488400.

The previous prime is 1221049. The next prime is 1221061. The reversal of 1221050 is 501221.

It can be written as a sum of positive squares in 3 ways, for example, as 444889 + 776161 = 667^2 + 881^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12161 + ... + 12260.

2^1221050 is an apocalyptic number.

1221050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221050 is a deficient number, since it is larger than the sum of its proper divisors (1050196).

1221050 is a wasteful number, since it uses less digits than its factorization.

1221050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24433 (or 24428 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1221050 is about 1105.0113121593. The cubic root of 1221050 is about 106.8836187662.

Adding to 1221050 its reverse (501221), we get a palindrome (1722271).

The spelling of 1221050 in words is "one million, two hundred twenty-one thousand, fifty".