1221352 has 16 divisors (see below), whose sum is σ = 2498400. Its totient is φ = 555120.

The previous prime is 1221299. The next prime is 1221373. The reversal of 1221352 is 2531221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6852 + ... + 7027.

It is an arithmetic number, because the mean of its divisors is an integer number (156150).

2^1221352 is an apocalyptic number.

It is an amenable number.

1221352 is an abundant number, since it is smaller than the sum of its proper divisors (1277048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221352 is a wasteful number, since it uses less digits than its factorization.

1221352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13896 (or 13892 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 1221352 is about 1105.1479538958. The cubic root of 1221352 is about 106.8924298146.

Adding to 1221352 its reverse (2531221), we get a palindrome (3752573).

The spelling of 1221352 in words is "one million, two hundred twenty-one thousand, three hundred fifty-two".