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12122201001 = 319212670193
BaseRepresentation
bin10110100101000101…
…00001101110101001
31011021211001121121110
423102202201232221
5144311240413001
65322512500533
7606254002611
oct132242415651
934254047543
1012122201001
115160737039
12242384a749
1311b257c501
1482dd4ba41
154ae35d3d6
hex2d28a1ba9

12122201001 has 8 divisors (see below), whose sum is σ = 17013615520. Its totient is φ = 7656126912.

The previous prime is 12122200967. The next prime is 12122201029. The reversal of 12122201001 is 10010222121.

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

It is not a de Polignac number, because 12122201001 - 214 = 12122184617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122201071) 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, 106335040 + ... + 106335153.

It is an arithmetic number, because the mean of its divisors is an integer number (2126701940).

Almost surely, 212122201001 is an apocalyptic number.

It is an amenable number.

12122201001 is a deficient number, since it is larger than the sum of its proper divisors (4891414519).

12122201001 is a wasteful number, since it uses less digits than its factorization.

12122201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212670215.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12122201001 its reverse (10010222121), we get a palindrome (22132423122).

The spelling of 12122201001 in words is "twelve billion, one hundred twenty-two million, two hundred one thousand, one".

Divisors: 1 3 19 57 212670193 638010579 4040733667 12122201001