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2212101112 = 2313157135479
BaseRepresentation
bin1000001111011001…
…1111101111111000
312201011110101020211
42003312133233320
514012244213422
61003301000504
7105550356244
oct20366375770
95634411224
102212101112
11a35745341
125189b3134
132933aa690
1416db0b424
15ce30c577
hex83d9fbf8

2212101112 has 32 divisors (see below), whose sum is σ = 4495226400. Its totient is φ = 1014459264.

The previous prime is 2212101109. The next prime is 2212101119. The reversal of 2212101112 is 2111012122.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2212101092 and 2212101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212101119) 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, 51412 + ... + 84067.

It is an arithmetic number, because the mean of its divisors is an integer number (140475825).

Almost surely, 22212101112 is an apocalyptic number.

It is an amenable number.

2212101112 is an abundant number, since it is smaller than the sum of its proper divisors (2283125288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212101112 is a wasteful number, since it uses less digits than its factorization.

2212101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135655 (or 135651 counting only the distinct ones).

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

The square root of 2212101112 is about 47032.9789828371. The cubic root of 2212101112 is about 1302.9717247101.

Adding to 2212101112 its reverse (2111012122), we get a palindrome (4323113234).

The spelling of 2212101112 in words is "two billion, two hundred twelve million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 157 314 628 1256 2041 4082 8164 16328 135479 270958 541916 1083832 1761227 3522454 7044908 14089816 21270203 42540406 85080812 170161624 276512639 553025278 1106050556 2212101112