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1222120102108 = 22476500638841
BaseRepresentation
bin10001110010001100000…
…010001101100011011100
311022211111122120201120111
4101302030002031203130
5130010400221231413
62333233443055404
7154203163316443
oct21621402154334
94284448521514
101222120102108
11431330a34214
12178a31671564
138b32629b219
144321820dd5a
1521bcbb3ed3d
hex11c8c08d8dc

1222120102108 has 12 divisors (see below), whose sum is σ = 2184214650912. Its totient is φ = 598058773280.

The previous prime is 1222120102097. The next prime is 1222120102109. The reversal of 1222120102108 is 8012010212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222120102109) 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 3 ways as a sum of consecutive naturals, for example, 3250319233 + ... + 3250319608.

It is an arithmetic number, because the mean of its divisors is an integer number (182017887576).

Almost surely, 21222120102108 is an apocalyptic number.

It is an amenable number.

1222120102108 is a deficient number, since it is larger than the sum of its proper divisors (962094548804).

1222120102108 is a wasteful number, since it uses less digits than its factorization.

1222120102108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500638892 (or 6500638890 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 1222120102108 its reverse (8012010212221), we get a palindrome (9234130314329).

The spelling of 1222120102108 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred two thousand, one hundred eight".

Divisors: 1 2 4 47 94 188 6500638841 13001277682 26002555364 305530025527 611060051054 1222120102108