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2211112213 = 19116374327
BaseRepresentation
bin1000001111001010…
…1110010100010101
312201002121010201221
42003302232110111
514012021042323
61003223450341
7105536100202
oct20362562425
95632533657
102211112213
11a3512a372
125185b69b1
1329312252b
1416d930ca9
15ce1b455d
hex83cae515

2211112213 has 4 divisors (see below), whose sum is σ = 2327486560. Its totient is φ = 2094737868.

The previous prime is 2211112181. The next prime is 2211112217. The reversal of 2211112213 is 3122111122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2211112213 - 25 = 2211112181 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 (2211112217) 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, 58187145 + ... + 58187182.

It is an arithmetic number, because the mean of its divisors is an integer number (581871640).

Almost surely, 22211112213 is an apocalyptic number.

It is an amenable number.

2211112213 is a deficient number, since it is larger than the sum of its proper divisors (116374347).

2211112213 is a wasteful number, since it uses less digits than its factorization.

2211112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116374346.

The product of its digits is 48, while the sum is 16.

The square root of 2211112213 is about 47022.4649821763. The cubic root of 2211112213 is about 1302.7775353515. Note that the first 3 decimals are identical.

Adding to 2211112213 its reverse (3122111122), we get a palindrome (5333223335).

The spelling of 2211112213 in words is "two billion, two hundred eleven million, one hundred twelve thousand, two hundred thirteen".

Divisors: 1 19 116374327 2211112213