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2251121040005 = 5450224208001
BaseRepresentation
bin100000110000100001010…
…001010001101010000101
321222012112111101102212112
4200300201101101222011
5243340243441240010
64442052320230405
7321431610061025
oct40604121215205
97865474342775
102251121040005
1179877115aa82
12304347a6b405
1313438395c836
147ad52119a85
153d854436a05
hex20c21451a85

2251121040005 has 4 divisors (see below), whose sum is σ = 2701345248012. Its totient is φ = 1800896832000.

The previous prime is 2251121039983. The next prime is 2251121040037. The reversal of 2251121040005 is 5000401211522.

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 1222101507169 + 1029019532836 = 1105487^2 + 1014406^2 .

It is not a de Polignac number, because 2251121040005 - 26 = 2251121039941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225112103996 + ... + 225112104005.

It is an arithmetic number, because the mean of its divisors is an integer number (675336312003).

Almost surely, 22251121040005 is an apocalyptic number.

It is an amenable number.

2251121040005 is a deficient number, since it is larger than the sum of its proper divisors (450224208007).

2251121040005 is an equidigital number, since it uses as much as digits as its factorization.

2251121040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450224208006.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 2251121040005 its reverse (5000401211522), we get a palindrome (7251522251527).

The spelling of 2251121040005 in words is "two trillion, two hundred fifty-one billion, one hundred twenty-one million, forty thousand, five".

Divisors: 1 5 450224208001 2251121040005