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2220112220111 = 12841172892471
BaseRepresentation
bin100000010011101001000…
…000000000111111001111
321212020111102211011202122
4200103221000000333033
5242333242212020421
64415523325443155
7316253310335222
oct40235100007717
97766442734678
102220112220111
117865a95196a5
122ba3331104bb
1313148158cbb6
147964db095b9
153cb3be882ab
hex204e9000fcf

2220112220111 has 4 divisors (see below), whose sum is σ = 2220285125424. Its totient is φ = 2219939314800.

The previous prime is 2220112220087. The next prime is 2220112220201. The reversal of 2220112220111 is 1110222110222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2220112220111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220112220111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220112220311) 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 3 ways as a sum of consecutive naturals, for example, 86433395 + ... + 86459076.

It is an arithmetic number, because the mean of its divisors is an integer number (555071281356).

Almost surely, 22220112220111 is an apocalyptic number.

2220112220111 is a deficient number, since it is larger than the sum of its proper divisors (172905313).

2220112220111 is a wasteful number, since it uses less digits than its factorization.

2220112220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172905312.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2220112220111 its reverse (1110222110222), we get a palindrome (3330334330333).

The spelling of 2220112220111 in words is "two trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".

Divisors: 1 12841 172892471 2220112220111