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222101 = 1161331
BaseRepresentation
bin110110001110010101
3102021122222
4312032111
524101401
64432125
71613345
oct661625
9367588
10222101
11141960
12a8645
137a129
145ad25
1545c1b
hex36395

222101 has 8 divisors (see below), whose sum is σ = 247008. Its totient is φ = 198000.

The previous prime is 222073. The next prime is 222107. The reversal of 222101 is 101222.

Adding to 222101 its reverse (101222), we get a palindrome (323323).

It can be divided in two parts, 222 and 101, that multiplied together give a palindrome (22422).

222101 = T53 + T54 + ... + T113.

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

It is not a de Polignac number, because 222101 - 210 = 221077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222107) 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, 506 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (30876).

2222101 is an apocalyptic number.

It is an amenable number.

222101 is a deficient number, since it is larger than the sum of its proper divisors (24907).

222101 is a wasteful number, since it uses less digits than its factorization.

222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 222101 is about 471.2759276687. The cubic root of 222101 is about 60.5596706546.

The spelling of 222101 in words is "two hundred twenty-two thousand, one hundred one", and thus it is an iban number.

Divisors: 1 11 61 331 671 3641 20191 222101