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111220120021111 = 5319710652247871
BaseRepresentation
bin11001010010011101110011…
…101111101110100001110111
3112120210112120101121212100121
4121102131303233232201313
5104034212301211133421
61032313452350152411
732266250153546353
oct3122356357564167
9476715511555317
10111220120021111
1132490208281a02
12105832551b2707
134a0a0210974aa
141d67122674463
15ccd155975d41
hex652773bee877

111220120021111 has 8 divisors (see below), whose sum is σ = 113893834247424. Its totient is φ = 108567710291040.

The previous prime is 111220120021099. The next prime is 111220120021147. The reversal of 111220120021111 is 111120021022111.

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 111220120021111 - 217 = 111220119890039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220127021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5326113495 + ... + 5326134376.

It is an arithmetic number, because the mean of its divisors is an integer number (14236729280928).

Almost surely, 2111220120021111 is an apocalyptic number.

111220120021111 is a deficient number, since it is larger than the sum of its proper divisors (2673714226313).

111220120021111 is a wasteful number, since it uses less digits than its factorization.

111220120021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652248121.

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

Adding to 111220120021111 its reverse (111120021022111), we get a palindrome (222340141043222).

The spelling of 111220120021111 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty million, twenty-one thousand, one hundred eleven".

Divisors: 1 53 197 10441 10652247871 564569137163 2098492830587 111220120021111