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2211100001012 = 22778967857179
BaseRepresentation
bin100000001011001111110…
…101001000001011110100
321211101020100202000022002
4200023033311020023310
5242211313100013022
64411433150354432
7315514055623040
oct40131765101364
97741210660262
102211100001012
117827a4342041
122b8638abba18
13130676421c86
1479036c33020
153c7b0b96092
hex202cfd482f4

2211100001012 has 12 divisors (see below), whose sum is σ = 4422200002080. Its totient is φ = 947614286136.

The previous prime is 2211100000931. The next prime is 2211100001027. The reversal of 2211100001012 is 2101000011122.

2211100001012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2211100000984 and 2211100001002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39483928562 + ... + 39483928617.

It is an arithmetic number, because the mean of its divisors is an integer number (368516666840).

Almost surely, 22211100001012 is an apocalyptic number.

It is an amenable number.

2211100001012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211100001012 is a wasteful number, since it uses less digits than its factorization.

2211100001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78967857190 (or 78967857188 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2211100001012 its reverse (2101000011122), we get a palindrome (4312100012134).

The spelling of 2211100001012 in words is "two trillion, two hundred eleven billion, one hundred million, one thousand, twelve".

Divisors: 1 2 4 7 14 28 78967857179 157935714358 315871428716 552775000253 1105550000506 2211100001012