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1220122110112 = 25472113938377
BaseRepresentation
bin10001110000010100111…
…100011110100010100000
311022122100102000012210221
4101300110330132202200
5124442302230010422
62332303311132424
7154102522550053
oct21602474364240
94278312005727
101220122110112
114304a6139264
12178574514114
138b098377b39
14430a8b18a9a
1521b115273c7
hex11c14f1e8a0

1220122110112 has 48 divisors (see below), whose sum is σ = 2453404222080. Its totient is φ = 597037229568.

The previous prime is 1220122110091. The next prime is 1220122110113. The reversal of 1220122110112 is 2110112210221.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1220122110113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31773868 + ... + 31812244.

It is an arithmetic number, because the mean of its divisors is an integer number (51112587960).

Almost surely, 21220122110112 is an apocalyptic number.

It is an amenable number.

1220122110112 is an abundant number, since it is smaller than the sum of its proper divisors (1233282111968).

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

1220122110112 is a wasteful number, since it uses less digits than its factorization.

1220122110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59573 (or 59565 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1220122110112 its reverse (2110112210221), we get a palindrome (3330234320333).

The spelling of 1220122110112 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred ten thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 47 94 188 376 752 1504 21139 38377 42278 76754 84556 153508 169112 307016 338224 614032 676448 993533 1228064 1803719 1987066 3607438 3974132 7214876 7948264 14429752 15896528 28859504 31793056 57719008 811251403 1622502806 3245005612 6490011224 12980022448 25960044896 38128815941 76257631882 152515263764 305030527528 610061055056 1220122110112