201622 has 4 divisors (see below), whose sum is σ = 302436. Its totient is φ = 100810.

The previous prime is 201611. The next prime is 201623. The reversal of 201622 is 226102.

It is a happy number.

201622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226102 = 2 ⋅113051.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201623) by changing a digit.

201622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50404 + ... + 50407.

It is an arithmetic number, because the mean of its divisors is an integer number (75609).

2²⁰¹⁶²² is an apocalyptic number.

201622 is a deficient number, since it is larger than the sum of its proper divisors (100814).

201622 is a wasteful number, since it uses less digits than its factorization.

201622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100813.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 201622 is about 449.0233846917. The cubic root of 201622 is about 58.6380211968.

Adding to 201622 its reverse (226102), we get a palindrome (427724).

It can be divided in two parts, 20162 and 2, that added together give a square (20164 = 142²).

The spelling of 201622 in words is "two hundred one thousand, six hundred twenty-two".