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2102011201 is a prime number
BaseRepresentation
bin111110101001010…
…0010010101000001
312102111022020021201
41331102202111001
513301103324301
6544325221201
7103042541353
oct17522422501
95374266251
102102011201
11989592144
124a7b61801
13276643414
1415d2510d3
15c4813201
hex7d4a2541

2102011201 has 2 divisors, whose sum is σ = 2102011202. Its totient is φ = 2102011200.

The previous prime is 2102011199. The next prime is 2102011253. The reversal of 2102011201 is 1021102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2004890176 + 97121025 = 44776^2 + 9855^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102011201 - 21 = 2102011199 is a prime.

Together with 2102011199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2102018201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051005600 + 1051005601.

It is an arithmetic number, because the mean of its divisors is an integer number (1051005601).

Almost surely, 22102011201 is an apocalyptic number.

It is an amenable number.

2102011201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102011201 is an equidigital number, since it uses as much as digits as its factorization.

2102011201 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 10.

The square root of 2102011201 is about 45847.6957000022. The cubic root of 2102011201 is about 1280.9878444058.

Adding to 2102011201 its reverse (1021102012), we get a palindrome (3123113213).

The spelling of 2102011201 in words is "two billion, one hundred two million, eleven thousand, two hundred one".