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1001222112011 = 11421216199981
BaseRepresentation
bin11101001000111010111…
…11010000001100001011
310112201022220001010222212
432210131133100030023
5112401000330041021
62043542144335335
7132223134350552
oct16443537201413
93481286033885
101001222112011
11356685864820
1214206331454b
1373551532844
1436660890d99
151b09dbbd85b
hexe91d7d030b

1001222112011 has 8 divisors (see below), whose sum is σ = 1094836708848. Its totient is φ = 908039916000.

The previous prime is 1001222111993. The next prime is 1001222112017. The reversal of 1001222112011 is 1102112221001.

1001222112011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1001222112011 - 26 = 1001222111947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001222112017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108095360 + ... + 108104621.

It is an arithmetic number, because the mean of its divisors is an integer number (136854588606).

Almost surely, 21001222112011 is an apocalyptic number.

1001222112011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001222112011 is a deficient number, since it is larger than the sum of its proper divisors (93614596837).

1001222112011 is a wasteful number, since it uses less digits than its factorization.

1001222112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216200413.

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

Adding to 1001222112011 its reverse (1102112221001), we get a palindrome (2103334333012).

The spelling of 1001222112011 in words is "one trillion, one billion, two hundred twenty-two million, one hundred twelve thousand, eleven".

Divisors: 1 11 421 4631 216199981 2378199791 91020192001 1001222112011