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2112012211 = 5361653267
BaseRepresentation
bin111110111100010…
…1011111110110011
312110012010100002111
41331320223332303
513311133342321
6545323430151
7103223544001
oct17570537663
95405110074
102112012211
119941a3041
124ab385357
1327873558a
141606d5a71
15c563b5e1
hex7de2bfb3

2112012211 has 8 divisors (see below), whose sum is σ = 2187141264. Its totient is φ = 2038189920.

The previous prime is 2112012193. The next prime is 2112012223. The reversal of 2112012211 is 1122102112.

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 2112012211 - 25 = 2112012179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112012191 and 2112012200.

It is not an unprimeable number, because it can be changed into a prime (2112012251) 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, 323401 + ... + 329866.

It is an arithmetic number, because the mean of its divisors is an integer number (273392658).

Almost surely, 22112012211 is an apocalyptic number.

2112012211 is a deficient number, since it is larger than the sum of its proper divisors (75129053).

2112012211 is an equidigital number, since it uses as much as digits as its factorization.

2112012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653381.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2112012211 is about 45956.6340260033. The cubic root of 2112012211 is about 1283.0162046704.

Adding to 2112012211 its reverse (1122102112), we get a palindrome (3234114323).

The spelling of 2112012211 in words is "two billion, one hundred twelve million, twelve thousand, two hundred eleven".

Divisors: 1 53 61 3233 653267 34623151 39849287 2112012211