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2010221111 is a prime number
BaseRepresentation
bin111011111010001…
…1000101000110111
312012002120210221202
41313310120220313
513104104033421
6531250003115
7100546411643
oct16764305067
95162523852
102010221111
11941798968
1248127649b
13260615762
14150d99c23
15bb73110b
hex77d18a37

2010221111 has 2 divisors, whose sum is σ = 2010221112. Its totient is φ = 2010221110.

The previous prime is 2010221093. The next prime is 2010221131. The reversal of 2010221111 is 1111220102.

Adding to 2010221111 its reverse (1111220102), we get a palindrome (3121441213).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2010221111 - 226 = 1943112247 is a prime.

It is a super-4 number, since 4×20102211114 (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2010221092 and 2010221101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010221131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005110555 + 1005110556.

It is an arithmetic number, because the mean of its divisors is an integer number (1005110556).

Almost surely, 22010221111 is an apocalyptic number.

2010221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010221111 is an equidigital number, since it uses as much as digits as its factorization.

2010221111 is an evil number, because the sum of its binary digits is even.

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

The square root of 2010221111 is about 44835.4894140791. The cubic root of 2010221111 is about 1262.0637027978.

The spelling of 2010221111 in words is "two billion, ten million, two hundred twenty-one thousand, one hundred eleven".