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12242120401 = 77124632033
BaseRepresentation
bin10110110011010111…
…11110111011010001
31011121011201011002201
423121223332323101
5200032440323101
65342435043201
7612241210060
oct133153767321
934534634081
1012242120401
1152123a3285
122457a40501
131201378834
14841c461d7
154b9b49e01
hex2d9afeed1

12242120401 has 8 divisors (see below), whose sum is σ = 14188051584. Its totient is φ = 10345453440.

The previous prime is 12242120383. The next prime is 12242120411. The reversal of 12242120401 is 10402124221.

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

It is not a de Polignac number, because 12242120401 - 217 = 12241989329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12242120411) 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, 12315520 + ... + 12316513.

It is an arithmetic number, because the mean of its divisors is an integer number (1773506448).

Almost surely, 212242120401 is an apocalyptic number.

It is an amenable number.

12242120401 is a deficient number, since it is larger than the sum of its proper divisors (1945931183).

12242120401 is an equidigital number, since it uses as much as digits as its factorization.

12242120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24632111.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12242120401 its reverse (10402124221), we get a palindrome (22644244622).

The spelling of 12242120401 in words is "twelve billion, two hundred forty-two million, one hundred twenty thousand, four hundred one".

Divisors: 1 7 71 497 24632033 172424231 1748874343 12242120401