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12201122202 = 232388413929
BaseRepresentation
bin10110101110011111…
…00101100110011010
31011111022120020010220
423113033211212122
5144441441402302
65334412220510
7611232553563
oct132717454632
934438506126
1012201122202
1151a1240775
12244616a736
1311c5a22849
1483a61316a
154b624c4bc
hex2d73e599a

12201122202 has 16 divisors (see below), whose sum is σ = 25463211840. Its totient is φ = 3890212832.

The previous prime is 12201122201. The next prime is 12201122203. The reversal of 12201122202 is 20222110221.

It is an interprime number because it is at equal distance from previous prime (12201122201) and next prime (12201122203).

It is not an unprimeable number, because it can be changed into a prime (12201122201) 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, 44206827 + ... + 44207102.

It is an arithmetic number, because the mean of its divisors is an integer number (1591450740).

Almost surely, 212201122202 is an apocalyptic number.

12201122202 is an abundant number, since it is smaller than the sum of its proper divisors (13262089638).

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

12201122202 is a wasteful number, since it uses less digits than its factorization.

12201122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88413957.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12201122202 its reverse (20222110221), we get a palindrome (32423232423).

The spelling of 12201122202 in words is "twelve billion, two hundred one million, one hundred twenty-two thousand, two hundred two".

Divisors: 1 2 3 6 23 46 69 138 88413929 176827858 265241787 530483574 2033520367 4067040734 6100561101 12201122202