1161222 has 16 divisors (see below), whose sum is σ = 2346240. Its totient is φ = 383112.

The previous prime is 1161217. The next prime is 1161227. The reversal of 1161222 is 2221611.

It is an interprime number because it is at equal distance from previous prime (1161217) and next prime (1161227).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161227) 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, 322 + ... + 1557.

It is an arithmetic number, because the mean of its divisors is an integer number (146640).

2^1161222 is an apocalyptic number.

1161222 is an abundant number, since it is smaller than the sum of its proper divisors (1185018).

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

1161222 is a wasteful number, since it uses less digits than its factorization.

1161222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its digits is 48, while the sum is 15.

The square root of 1161222 is about 1077.6001113586. The cubic root of 1161222 is about 105.1086403887.

Adding to 1161222 its reverse (2221611), we get a palindrome (3382833).

The spelling of 1161222 in words is "one million, one hundred sixty-one thousand, two hundred twenty-two".