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22101 has 8 divisors (see below), whose sum is σ = 30240. Its totient is φ = 14352.

The previous prime is 22093. The next prime is 22109. The reversal of 22101 is 10122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22093) and next prime (22109).

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

It is not a de Polignac number, because 22101 - 23 = 22093 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109) 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, 90 + ... + 228.

It is an arithmetic number, because the mean of its divisors is an integer number (3780).

222101 is an apocalyptic number.

It is an amenable number.

22101 is a deficient number, since it is larger than the sum of its proper divisors (8139).

22101 is a wasteful number, since it uses less digits than its factorization.

22101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 22101 is about 148.6640507991. The cubic root of 22101 is about 28.0632075473.

Adding to 22101 its reverse (10122), we get a palindrome (32223).

It can be divided in two parts, 2210 and 1, that added together give a triangular number (2211 = T66).

The spelling of 22101 in words is "twenty-two thousand, one hundred one", and thus it is an iban number.

Divisors: 1 3 53 139 159 417 7367 22101