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1222120111201 = 11739150340769
BaseRepresentation
bin10001110010001100000…
…010001111110001100001
311022211111122121012001021
4101302030002033301201
5130010400222024301
62333233443205441
7154203163355113
oct21621402176141
94284448535037
101222120111201
11431330a40030
12178a31676881
138b3262a23c2
14432182133b3
1521bcbb428a1
hex11c8c08fc61

1222120111201 has 8 divisors (see below), whose sum is σ = 1335026037600. Its totient is φ = 1109514867840.

The previous prime is 1222120111193. The next prime is 1222120111213. The reversal of 1222120111201 is 1021110212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222120111201 - 23 = 1222120111193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222120111271) 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, 75162256 + ... + 75178513.

It is an arithmetic number, because the mean of its divisors is an integer number (166878254700).

Almost surely, 21222120111201 is an apocalyptic number.

1222120111201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222120111201 is a deficient number, since it is larger than the sum of its proper divisors (112905926399).

1222120111201 is a wasteful number, since it uses less digits than its factorization.

1222120111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150341519.

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

Adding to 1222120111201 its reverse (1021110212221), we get a palindrome (2243230323422).

The spelling of 1222120111201 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred one".

Divisors: 1 11 739 8129 150340769 1653748459 111101828291 1222120111201