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12010222242 = 233435172361
BaseRepresentation
bin10110010111101110…
…10111001010100010
31011000000100111122000
423023313113022202
5144044104102432
65303432424430
7603424130124
oct131367271242
934000314560
1012010222242
115103503807
1223b2248116
1311953035a5
1481d11d214
154a45de57c
hex2cbdd72a2

12010222242 has 32 divisors (see below), whose sum is σ = 27310071360. Its totient is φ = 3910304160.

The previous prime is 12010222219. The next prime is 12010222243. The reversal of 12010222242 is 24222201021.

12010222242 is a `hidden beast` number, since 1 + 201 + 0 + 222 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12010222243) 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 15 ways as a sum of consecutive naturals, for example, 2583859 + ... + 2588502.

It is an arithmetic number, because the mean of its divisors is an integer number (853439730).

Almost surely, 212010222242 is an apocalyptic number.

12010222242 is an abundant number, since it is smaller than the sum of its proper divisors (15299849118).

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

12010222242 is a wasteful number, since it uses less digits than its factorization.

12010222242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172415 (or 5172409 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12010222242 its reverse (24222201021), we get a palindrome (36232423263).

The spelling of 12010222242 in words is "twelve billion, ten million, two hundred twenty-two thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 43 54 86 129 258 387 774 1161 2322 5172361 10344722 15517083 31034166 46551249 93102498 139653747 222411523 279307494 444823046 667234569 1334469138 2001703707 4003407414 6005111121 12010222242