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12422101 = 61203641
BaseRepresentation
bin101111011000…
…101111010101
3212101002220211
4233120233111
511140001401
61122125421
7210405016
oct57305725
925332824
1012422101
1170149aa
1241b0871
13275c173
14191500d
151155951
hexbd8bd5

12422101 has 4 divisors (see below), whose sum is σ = 12625804. Its totient is φ = 12218400.

The previous prime is 12422083. The next prime is 12422119. The reversal of 12422101 is 10122421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12422083) and next prime (12422119).

It can be written as a sum of positive squares in 2 ways, for example, as 3511876 + 8910225 = 1874^2 + 2985^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422101 - 29 = 12421589 is a prime.

It is the 3525-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422131) by changing a digit.

It is a nontrivial repunit in base 3524.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101760 + ... + 101881.

It is an arithmetic number, because the mean of its divisors is an integer number (3156451).

Almost surely, 212422101 is an apocalyptic number.

It is an amenable number.

12422101 is a deficient number, since it is larger than the sum of its proper divisors (203703).

12422101 is an equidigital number, since it uses as much as digits as its factorization.

12422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203702.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12422101 is about 3524.5001063981. The cubic root of 12422101 is about 231.5963365576.

Adding to 12422101 its reverse (10122421), we get a palindrome (22544522).

The spelling of 12422101 in words is "twelve million, four hundred twenty-two thousand, one hundred one".

Divisors: 1 61 203641 12422101