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1220102011112 = 231731133438629
BaseRepresentation
bin10001110000010011101…
…111110011100011101000
311022122022000012002011112
4101300103233303203220
5124442232103323422
62332301312245452
7154102156656305
oct21602357634350
94278260162145
101220102011112
11430495860616
12178569840888
138b09415b63a
14430a61a60ac
1521b0e8a6ee2
hex11c13bf38e8

1220102011112 has 64 divisors (see below), whose sum is σ = 2431058572800. Its totient is φ = 572081955840.

The previous prime is 1220102011111. The next prime is 1220102011123. The reversal of 1220102011112 is 2111102010221.

It is not an unprimeable number, because it can be changed into a prime (1220102011111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141391214 + ... + 141399842.

It is an arithmetic number, because the mean of its divisors is an integer number (37985290200).

Almost surely, 21220102011112 is an apocalyptic number.

It is an amenable number.

1220102011112 is a deficient number, since it is larger than the sum of its proper divisors (1210956561688).

1220102011112 is a wasteful number, since it uses less digits than its factorization.

1220102011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12306 (or 12302 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220102011112 its reverse (2111102010221), we get a palindrome (3331204021333).

The spelling of 1220102011112 in words is "one trillion, two hundred twenty billion, one hundred two million, eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 17 34 68 136 311 622 1244 2488 3343 5287 6686 8629 10574 13372 17258 21148 26744 34516 42296 56831 69032 113662 146693 227324 293386 454648 586772 1039673 1173544 2079346 2683619 4158692 5367238 8317384 10734476 17674441 21468952 28846747 35348882 45621523 57693494 70697764 91243046 115386988 141395528 182486092 230773976 364972184 490394699 980789398 1961578796 3923157592 8971338317 17942676634 35885353268 71770706536 152512751389 305025502778 610051005556 1220102011112