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2212102011005 = 5442420402201
BaseRepresentation
bin100000001100001011100…
…011011111100001111101
321211110211012012101121022
4200030023203133201331
5242220341103323010
64412120423113525
7315550643565005
oct40141343374175
97743735171538
102212102011005
11783168a08a77
122b88785a28a5
131307a5bb3cb3
14790cdd45005
153c81db22d55
hex2030b8df87d

2212102011005 has 4 divisors (see below), whose sum is σ = 2654522413212. Its totient is φ = 1769681608800.

The previous prime is 2212102011001. The next prime is 2212102011037. The reversal of 2212102011005 is 5001102012122.

2212102011005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 279607230841 + 1932494780164 = 528779^2 + 1390142^2 .

It is not a de Polignac number, because 2212102011005 - 22 = 2212102011001 is a prime.

It is a super-2 number, since 2×22121020110052 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212102011001) 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, 221210201096 + ... + 221210201105.

It is an arithmetic number, because the mean of its divisors is an integer number (663630603303).

Almost surely, 22212102011005 is an apocalyptic number.

It is an amenable number.

2212102011005 is a deficient number, since it is larger than the sum of its proper divisors (442420402207).

2212102011005 is an equidigital number, since it uses as much as digits as its factorization.

2212102011005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442420402206.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 2212102011005 its reverse (5001102012122), we get a palindrome (7213204023127).

The spelling of 2212102011005 in words is "two trillion, two hundred twelve billion, one hundred two million, eleven thousand, five".

Divisors: 1 5 442420402201 2212102011005