1222956 has 72 divisors (see below), whose sum is σ = 3704064. Its totient is φ = 332640.

The previous prime is 1222943. The next prime is 1222957. The reversal of 1222956 is 6592221.

It is not an unprimeable number, because it can be changed into a prime (1222957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5691 + ... + 5901.

2^1222956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852032).

1222956 is an abundant number, since it is smaller than the sum of its proper divisors (2481108).

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

1222956 is a wasteful number, since it uses less digits than its factorization.

1222956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 246 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1222956 is about 1105.8734104770. The cubic root of 1222956 is about 106.9392032413.

The spelling of 1222956 in words is "one million, two hundred twenty-two thousand, nine hundred fifty-six".