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2011110000221 = 72231784480923
BaseRepresentation
bin11101010000111111011…
…111110100011001011101
321010021000201021100010202
4131100333133310121131
5230422223130001341
64135520254513245
7265204115643200
oct35207737643135
97107021240122
102011110000221
117059a8190453
12285924805825
131178541c41ba
146d4a41d5937
15374a854979b
hex1d43f7f465d

2011110000221 has 12 divisors (see below), whose sum is σ = 2441169904032. Its totient is φ = 1648860371928.

The previous prime is 2011110000209. The next prime is 2011110000227. The reversal of 2011110000221 is 1220000111102.

It is a de Polignac number, because none of the positive numbers 2k-2011110000221 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 (2011110000227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892239335 + ... + 892241588.

It is an arithmetic number, because the mean of its divisors is an integer number (203430825336).

Almost surely, 22011110000221 is an apocalyptic number.

It is an amenable number.

2011110000221 is a deficient number, since it is larger than the sum of its proper divisors (430059903811).

2011110000221 is a wasteful number, since it uses less digits than its factorization.

2011110000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784480960 (or 1784480953 counting only the distinct ones).

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

Adding to 2011110000221 its reverse (1220000111102), we get a palindrome (3231110111323).

The spelling of 2011110000221 in words is "two trillion, eleven billion, one hundred ten million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 7 23 49 161 1127 1784480923 12491366461 41043061229 87439565227 287301428603 2011110000221