Search a number
-
+
2211221012112 = 243272193671639
BaseRepresentation
bin100000001011010111000…
…010101111111010010000
321211101112210110000022200
4200023113002233322100
5242212040034341422
64411453152203200
7315520055325060
oct40132702577220
97741483400280
102211221012112
11782856684512
122b8671539500
13130695511188
1479048d333a0
153c7bb5eb2ac
hex202d70afe90

2211221012112 has 60 divisors (see below), whose sum is σ = 7072397367360. Its totient is φ = 631777431744.

The previous prime is 2211221012089. The next prime is 2211221012123. The reversal of 2211221012112 is 2112101221122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1096834812 + ... + 1096836827.

It is an arithmetic number, because the mean of its divisors is an integer number (117873289456).

Almost surely, 22211221012112 is an apocalyptic number.

It is an amenable number.

2211221012112 is an abundant number, since it is smaller than the sum of its proper divisors (4861176355248).

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

2211221012112 is a wasteful number, since it uses less digits than its factorization.

2211221012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193671660 (or 2193671651 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2211221012112 its reverse (2112101221122), we get a palindrome (4323322233234).

The spelling of 2211221012112 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 2193671639 4387343278 6581014917 8774686556 13162029834 15355701473 17549373112 19743044751 26324059668 30711402946 35098746224 39486089502 46067104419 52648119336 61422805892 78972179004 92134208838 105296238672 122845611784 138201313257 157944358008 184268417676 245691223568 276402626514 315888716016 368536835352 552805253028 737073670704 1105610506056 2211221012112