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12422211 = 318122877
BaseRepresentation
bin101111011000…
…110001000011
3212101010001220
4233120301003
511140002321
61122130123
7210405234
oct57306103
925333056
1012422211
117014a9a
1241b0943
13275c229
14191508b
1511559c6
hexbd8c43

12422211 has 8 divisors (see below), whose sum is σ = 16655184. Its totient is φ = 8235360.

The previous prime is 12422209. The next prime is 12422243. The reversal of 12422211 is 11222421.

12422211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12422211 - 21 = 12422209 is a prime.

It is a super-2 number, since 2×124222112 = 308622652257042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12422281) 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, 10896 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (2081898).

Almost surely, 212422211 is an apocalyptic number.

12422211 is a deficient number, since it is larger than the sum of its proper divisors (4232973).

12422211 is a wasteful number, since it uses less digits than its factorization.

12422211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23061.

The product of its digits is 64, while the sum is 15.

The square root of 12422211 is about 3524.5157114134. The cubic root of 12422211 is about 231.5970201650.

Adding to 12422211 its reverse (11222421), we get a palindrome (23644632).

The spelling of 12422211 in words is "twelve million, four hundred twenty-two thousand, two hundred eleven".

Divisors: 1 3 181 543 22877 68631 4140737 12422211