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1201002222 = 23728595291
BaseRepresentation
bin100011110010101…
…1101011011101110
310002200220020022210
41013211131123232
54424424032342
6315101351250
741522231130
oct10745353356
93080806283
101201002222
11566a30822
12296268526
13161a85704
14b5711050
157068779c
hex4795d6ee

1201002222 has 16 divisors (see below), whose sum is σ = 2745148032. Its totient is φ = 343143480.

The previous prime is 1201002199. The next prime is 1201002227. The reversal of 1201002222 is 2222001021.

It is a junction number, because it is equal to n+sod(n) for n = 1201002198 and 1201002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201002227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14297604 + ... + 14297687.

It is an arithmetic number, because the mean of its divisors is an integer number (171571752).

Almost surely, 21201002222 is an apocalyptic number.

1201002222 is an abundant number, since it is smaller than the sum of its proper divisors (1544145810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201002222 is a wasteful number, since it uses less digits than its factorization.

1201002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28595303.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1201002222 is about 34655.4789607646. The cubic root of 1201002222 is about 1062.9543256931.

Adding to 1201002222 its reverse (2222001021), we get a palindrome (3423003243).

The spelling of 1201002222 in words is "one billion, two hundred one million, two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 28595291 57190582 85785873 171571746 200167037 400334074 600501111 1201002222