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2111111112001 = 22671158780369
BaseRepresentation
bin11110101110001000000…
…001110010010101000001
321110211010222000011110111
4132232020001302111001
5234042023421041001
64253455301431321
7305344205242063
oct36561001622501
97424128004414
102111111112001
11744354205881
122a1192a0b541
131241000029a8
147426d465733
1539dac903851
hex1eb88072541

2111111112001 has 8 divisors (see below), whose sum is σ = 2112250906080. Its totient is φ = 2109971506368.

The previous prime is 2111111111999. The next prime is 2111111112023. The reversal of 2111111112001 is 1002111111112.

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 2111111112001 - 21 = 2111111111999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111111112301) 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, 26227545 + ... + 26307913.

It is an arithmetic number, because the mean of its divisors is an integer number (264031363260).

Almost surely, 22111111112001 is an apocalyptic number.

It is an amenable number.

2111111112001 is a deficient number, since it is larger than the sum of its proper divisors (1139794079).

2111111112001 is a wasteful number, since it uses less digits than its factorization.

2111111112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94223.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 2111111112001 its reverse (1002111111112), we get a palindrome (3113222223113).

The spelling of 2111111112001 in words is "two trillion, one hundred eleven billion, one hundred eleven million, one hundred twelve thousand, one".

Divisors: 1 2267 11587 80369 26267729 182196523 931235603 2111111112001