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2122102110001 = 3400736240137
BaseRepresentation
bin11110111000010111001…
…001000111011100110001
321111212111221111201021111
4132320113021013130301
5234232031120010001
64302514044553321
7306213445213036
oct36702711073461
97455457451244
102122102110001
11748a843552a5
122a333b852841
131251620c7ac3
14749d307138d
153a3027b5851
hex1ee17247731

2122102110001 has 4 divisors (see below), whose sum is σ = 2122108690212. Its totient is φ = 2122095529792.

The previous prime is 2122102109987. The next prime is 2122102110019. The reversal of 2122102110001 is 1000112012212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1805465192976 + 316636917025 = 1343676^2 + 562705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122102110001 - 217 = 2122101978929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122102110031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2779996 + ... + 3460141.

It is an arithmetic number, because the mean of its divisors is an integer number (530527172553).

Almost surely, 22122102110001 is an apocalyptic number.

It is an amenable number.

2122102110001 is a deficient number, since it is larger than the sum of its proper divisors (6580211).

2122102110001 is an equidigital number, since it uses as much as digits as its factorization.

2122102110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6580210.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2122102110001 its reverse (1000112012212), we get a palindrome (3122214122213).

The spelling of 2122102110001 in words is "two trillion, one hundred twenty-two billion, one hundred two million, one hundred ten thousand, one".

Divisors: 1 340073 6240137 2122102110001