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2122322213 = 11289197077
BaseRepresentation
bin111111010000000…
…0001000100100101
312110220112010202102
41332200001010211
513321303302323
6550332421445
7103410304214
oct17640010445
95426463672
102122322213
11999aa5100
124b2917885
1327a90527b
14161c1b07b
15c64c6328
hex7e801125

2122322213 has 12 divisors (see below), whose sum is σ = 2359023660. Its totient is φ = 1907695680.

The previous prime is 2122322203. The next prime is 2122322227. The reversal of 2122322213 is 3122232212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1225140004 + 897182209 = 35002^2 + 29953^2 .

It is not a de Polignac number, because 2122322213 - 216 = 2122256677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122322203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87770 + ... + 109307.

It is an arithmetic number, because the mean of its divisors is an integer number (196585305).

Almost surely, 22122322213 is an apocalyptic number.

It is an amenable number.

2122322213 is a deficient number, since it is larger than the sum of its proper divisors (236701447).

2122322213 is a wasteful number, since it uses less digits than its factorization.

2122322213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197188 (or 197177 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 2122322213 is about 46068.6684526479. The cubic root of 2122322213 is about 1285.1005413214.

Adding to 2122322213 its reverse (3122232212), we get a palindrome (5244554425).

Subtracting 2122322213 from its reverse (3122232212), we obtain a palindrome (999909999).

The spelling of 2122322213 in words is "two billion, one hundred twenty-two million, three hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 11 89 121 979 10769 197077 2167847 17539853 23846317 192938383 2122322213