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122214321 = 32111712157
BaseRepresentation
bin1110100100011…
…01011110110001
322111222010112100
413102031132301
5222241324241
620043251013
73012542655
oct722153661
9274863470
10122214321
1162a94479
1234b19a69
131c420a88
1412334a65
15aae19b6
hex748d7b1

122214321 has 12 divisors (see below), whose sum is σ = 176704372. Its totient is φ = 81396576.

The previous prime is 122214283. The next prime is 122214329. The reversal of 122214321 is 123412221.

It is a happy number.

122214321 is a `hidden beast` number, since 12 + 221 + 432 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 116640000 = 2361^2 + 10800^2 .

It is not a de Polignac number, because 122214321 - 29 = 122213809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122214294 and 122214303.

It is not an unprimeable number, because it can be changed into a prime (122214329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3975 + ... + 16131.

Almost surely, 2122214321 is an apocalyptic number.

It is an amenable number.

122214321 is a deficient number, since it is larger than the sum of its proper divisors (54490051).

122214321 is a wasteful number, since it uses less digits than its factorization.

122214321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13280 (or 13277 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 122214321 is about 11055.0586158555. The cubic root of 122214321 is about 496.2578234358.

Adding to 122214321 its reverse (123412221), we get a palindrome (245626542).

The spelling of 122214321 in words is "one hundred twenty-two million, two hundred fourteen thousand, three hundred twenty-one".

Divisors: 1 3 9 1117 3351 10053 12157 36471 109413 13579369 40738107 122214321