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12022213 = 717101027
BaseRepresentation
bin101101110111…
…000111000101
3211121210101011
4231313013011
511034202323
61105402221
7204121120
oct55670705
924553334
1012022213
116871515
124039371
13264c148
14184d3b7
1510c720d
hexb771c5

12022213 has 8 divisors (see below), whose sum is σ = 14548032. Its totient is φ = 9698496.

The previous prime is 12022181. The next prime is 12022223. The reversal of 12022213 is 31222021.

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

It is a cyclic number.

It is not a de Polignac number, because 12022213 - 25 = 12022181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022193 and 12022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022223) 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, 50395 + ... + 50632.

It is an arithmetic number, because the mean of its divisors is an integer number (1818504).

Almost surely, 212022213 is an apocalyptic number.

It is an amenable number.

12022213 is a deficient number, since it is larger than the sum of its proper divisors (2525819).

12022213 is a wasteful number, since it uses less digits than its factorization.

12022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101051.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12022213 is about 3467.3063031697. The cubic root of 12022213 is about 229.0840255334.

Adding to 12022213 its reverse (31222021), we get a palindrome (43244234).

The spelling of 12022213 in words is "twelve million, twenty-two thousand, two hundred thirteen".

Divisors: 1 7 17 119 101027 707189 1717459 12022213