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222122201 = 7231379641
BaseRepresentation
bin11010011110101…
…01000011011001
3120110221222101012
431033111003121
5423330402301
634012503305
75335002410
oct1517250331
9513858335
10222122201
11104422774
126247ab35
1337031672
1421700477
1514778ebb
hexd3d50d9

222122201 has 8 divisors (see below), whose sum is σ = 264891264. Its totient is φ = 182112480.

The previous prime is 222122189. The next prime is 222122207. The reversal of 222122201 is 102221222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222122201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222122207) 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, 689660 + ... + 689981.

It is an arithmetic number, because the mean of its divisors is an integer number (33111408).

Almost surely, 2222122201 is an apocalyptic number.

It is an amenable number.

222122201 is a deficient number, since it is larger than the sum of its proper divisors (42769063).

222122201 is a wasteful number, since it uses less digits than its factorization.

222122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379671.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 222122201 is about 14903.7646586358. The cubic root of 222122201 is about 605.6159753285.

Adding to 222122201 its reverse (102221222), we get a palindrome (324343423).

The spelling of 222122201 in words is "two hundred twenty-two million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 7 23 161 1379641 9657487 31731743 222122201