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2112211133 = 19313586097
BaseRepresentation
bin111110111100101…
…1100100010111101
312110012111102221222
41331321130202331
513311211224013
6545332003125
7103225332644
oct17571344275
95405442858
102112211133
1199431953a
124ab4604a5
132787a4c96
1416074835b
15c567a508
hex7de5c8bd

2112211133 has 8 divisors (see below), whose sum is σ = 2295102720. Its totient is φ = 1936491840.

The previous prime is 2112211111. The next prime is 2112211139. The reversal of 2112211133 is 3311122112.

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 2112211133 - 218 = 2111948989 is a prime.

It is a super-2 number, since 2×21122111332 = 8922871740738287378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112211139) 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, 1792460 + ... + 1793637.

It is an arithmetic number, because the mean of its divisors is an integer number (286887840).

Almost surely, 22112211133 is an apocalyptic number.

It is an amenable number.

2112211133 is a deficient number, since it is larger than the sum of its proper divisors (182891587).

2112211133 is a wasteful number, since it uses less digits than its factorization.

2112211133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586147.

The product of its digits is 72, while the sum is 17.

The square root of 2112211133 is about 45958.7982110063. The cubic root of 2112211133 is about 1283.0564841309.

Adding to 2112211133 its reverse (3311122112), we get a palindrome (5423333245).

The spelling of 2112211133 in words is "two billion, one hundred twelve million, two hundred eleven thousand, one hundred thirty-three".

Divisors: 1 19 31 589 3586097 68135843 111169007 2112211133