1221254 has 16 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 576840.

The previous prime is 1221251. The next prime is 1221289. The reversal of 1221254 is 4521221.

It is a super-2 number, since 2×1221254² = 2982922665032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6299 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^1221254 is an apocalyptic number.

1221254 is a deficient number, since it is larger than the sum of its proper divisors (714106).

1221254 is a wasteful number, since it uses less digits than its factorization.

1221254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its digits is 160, while the sum is 17.

The square root of 1221254 is about 1105.1036150515. The cubic root of 1221254 is about 106.8895707594.

Adding to 1221254 its reverse (4521221), we get a palindrome (5742475).

The spelling of 1221254 in words is "one million, two hundred twenty-one thousand, two hundred fifty-four".