1611222 has 8 divisors (see below), whose sum is σ = 3222456. Its totient is φ = 537072.

The previous prime is 1611217. The next prime is 1611223. The reversal of 1611222 is 2221161.

It is a sphenic number, since it is the product of 3 distinct primes.

1611222 is an admirable number.

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 (1611223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134263 + ... + 134274.

It is an arithmetic number, because the mean of its divisors is an integer number (402807).

2^1611222 is an apocalyptic number.

1611222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1611222 is a wasteful number, since it uses less digits than its factorization.

1611222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268542.

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

The square root of 1611222 is about 1269.3391981657. The cubic root of 1611222 is about 117.2335171099.

Adding to 1611222 its reverse (2221161), we get a palindrome (3832383).

The spelling of 1611222 in words is "one million, six hundred eleven thousand, two hundred twenty-two".