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2110012121 = 7867734739
BaseRepresentation
bin111110111000100…
…0011101011011001
312110001100201111002
41331301003223121
513310130341441
6545212514345
7103200543560
oct17561035331
95401321432
102110012121
11993057378
124aa77b9b5
132781b50a9
14160334bd7
15c5393b9b
hex7dc43ad9

2110012121 has 8 divisors (see below), whose sum is σ = 2411789760. Its totient is φ = 1808321328.

The previous prime is 2110012087. The next prime is 2110012123. The reversal of 2110012121 is 1212100112.

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

It is a cyclic number.

It is not a de Polignac number, because 2110012121 - 26 = 2110012057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2110012123) 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, 43370 + ... + 78108.

It is an arithmetic number, because the mean of its divisors is an integer number (301473720).

Almost surely, 22110012121 is an apocalyptic number.

It is an amenable number.

2110012121 is a deficient number, since it is larger than the sum of its proper divisors (301777639).

2110012121 is an equidigital number, since it uses as much as digits as its factorization.

2110012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43423.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2110012121 is about 45934.8682484232. The cubic root of 2110012121 is about 1282.6110683827.

Adding to 2110012121 its reverse (1212100112), we get a palindrome (3322112233).

The spelling of 2110012121 in words is "two billion, one hundred ten million, twelve thousand, one hundred twenty-one".

Divisors: 1 7 8677 34739 60739 243173 301430303 2110012121