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222213201 = 3710581581
BaseRepresentation
bin11010011111010…
…11010001010001
3120111010121012120
431033223101101
5423341310301
634014444453
75335531620
oct1517532121
9514117176
10222213201
11104485081
1262503729
1337063c02
14217256b7
1514795e36
hexd3eb451

222213201 has 8 divisors (see below), whose sum is σ = 338610624. Its totient is φ = 126978960.

The previous prime is 222213163. The next prime is 222213203. The reversal of 222213201 is 102312222.

It is a happy number.

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

It is not a de Polignac number, because 222213201 - 29 = 222212689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222213203) 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, 5290770 + ... + 5290811.

It is an arithmetic number, because the mean of its divisors is an integer number (42326328).

Almost surely, 2222213201 is an apocalyptic number.

222213201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222213201 is a deficient number, since it is larger than the sum of its proper divisors (116397423).

222213201 is a wasteful number, since it uses less digits than its factorization.

222213201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581591.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222213201 is about 14906.8172659357. The cubic root of 222213201 is about 605.6986678421.

Adding to 222213201 its reverse (102312222), we get a palindrome (324525423).

The spelling of 222213201 in words is "two hundred twenty-two million, two hundred thirteen thousand, two hundred one".

Divisors: 1 3 7 21 10581581 31744743 74071067 222213201