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2212111442 = 21961954319
BaseRepresentation
bin1000001111011010…
…0010010001010010
312201011110220102102
42003312202101102
514012300031232
61003301120402
7105550431332
oct20366422122
95634426372
102212111442
11a35752082
125189b9102
132933b22a8
1416db110c2
15ce310662
hex83da2452

2212111442 has 16 divisors (see below), whose sum is σ = 3550070400. Its totient is φ = 1030663440.

The previous prime is 2212111427. The next prime is 2212111453. The reversal of 2212111442 is 2441112122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474842 + ... + 479477.

It is an arithmetic number, because the mean of its divisors is an integer number (221879400).

Almost surely, 22212111442 is an apocalyptic number.

2212111442 is a deficient number, since it is larger than the sum of its proper divisors (1337958958).

2212111442 is a wasteful number, since it uses less digits than its factorization.

2212111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954401.

The product of its digits is 256, while the sum is 20.

The square root of 2212111442 is about 47033.0887992698. The cubic root of 2212111442 is about 1302.9737528990.

Adding to 2212111442 its reverse (2441112122), we get a palindrome (4653223564).

The spelling of 2212111442 in words is "two billion, two hundred twelve million, one hundred eleven thousand, four hundred forty-two".

Divisors: 1 2 19 38 61 122 1159 2318 954319 1908638 18132061 36264122 58213459 116426918 1106055721 2212111442