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2211100211111 = 11743327042797
BaseRepresentation
bin100000001011001111110…
…101111011011110100111
321211101020101010200111112
4200023033311323132213
5242211313123223421
64411433155055235
7315514060456421
oct40131765733647
97741211120445
102211100211111
117827a4475980
122b8638ba151b
131306764967ac
1479036c89811
153c7b0bd845b
hex202cfd7b7a7

2211100211111 has 8 divisors (see below), whose sum is σ = 2412433923984. Its totient is φ = 2009820598720.

The previous prime is 2211100211041. The next prime is 2211100211129. The reversal of 2211100211111 is 1111120011122.

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

It is not a de Polignac number, because 2211100211111 - 222 = 2211096016807 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 (2211100211011) 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, 13439636 + ... + 13603161.

It is an arithmetic number, because the mean of its divisors is an integer number (301554240498).

Almost surely, 22211100211111 is an apocalyptic number.

2211100211111 is a deficient number, since it is larger than the sum of its proper divisors (201333712873).

2211100211111 is a wasteful number, since it uses less digits than its factorization.

2211100211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27050241.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2211100211111 its reverse (1111120011122), we get a palindrome (3322220222233).

The spelling of 2211100211111 in words is "two trillion, two hundred eleven billion, one hundred million, two hundred eleven thousand, one hundred eleven".

Divisors: 1 11 7433 81763 27042797 297470767 201009110101 2211100211111