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2012202211081 is a prime number
BaseRepresentation
bin11101010010000000100…
…110010001011100001001
321010100211211110101202211
4131102000212101130021
5230431442231223311
64140220512425121
7265243150405336
oct35220046213411
97110754411684
102012202211081
11706408765657
12285b8a5481a1
1311799957870a
146d5692a798d
153751e392821
hex1d480991709

2012202211081 has 2 divisors, whose sum is σ = 2012202211082. Its totient is φ = 2012202211080.

The previous prime is 2012202211037. The next prime is 2012202211109. The reversal of 2012202211081 is 1801122022102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1180230195456 + 831972015625 = 1086384^2 + 912125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012202211081 - 219 = 2012201686793 is a prime.

It is a super-3 number, since 3×20122022110813 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2012202211181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006101105540 + 1006101105541.

It is an arithmetic number, because the mean of its divisors is an integer number (1006101105541).

Almost surely, 22012202211081 is an apocalyptic number.

It is an amenable number.

2012202211081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012202211081 is an equidigital number, since it uses as much as digits as its factorization.

2012202211081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 2012202211081 its reverse (1801122022102), we get a palindrome (3813324233183).

The spelling of 2012202211081 in words is "two trillion, twelve billion, two hundred two million, two hundred eleven thousand, eighty-one".