1601222 has 12 divisors (see below), whose sum is σ = 2794140. Its totient is φ = 686196.

The previous prime is 1601219. The next prime is 1601227. The reversal of 1601222 is 2221061.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1601197 and 1601206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601227) 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 5 ways as a sum of consecutive naturals, for example, 8072 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (232845).

2^1601222 is an apocalyptic number.

1601222 is a deficient number, since it is larger than the sum of its proper divisors (1192918).

1601222 is a wasteful number, since it uses less digits than its factorization.

1601222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16355 (or 16348 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1601222 is about 1265.3940097851. The cubic root of 1601222 is about 116.9904781985.

Adding to 1601222 its reverse (2221061), we get a palindrome (3822283).

The spelling of 1601222 in words is "one million, six hundred one thousand, two hundred twenty-two".