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10122000001 is a prime number
BaseRepresentation
bin10010110110101000…
…10111011010000001
3222010102022212122221
421123110113122001
5131212213000001
64352221331041
7505555403041
oct113324273201
928112285587
1010122000001
114324672463
121b65a06a81
13c54064819
146c043d721
153e395b1a1
hex25b517681

10122000001 has 2 divisors, whose sum is σ = 10122000002. Its totient is φ = 10122000000.

The previous prime is 10121999969. The next prime is 10122000023. The reversal of 10122000001 is 10000022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9721960000 + 400040001 = 98600^2 + 20001^2 .

It is an emirp because it is prime and its reverse (10000022101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10122000001 - 25 = 10121999969 is a prime.

It is not a weakly prime, because it can be changed into another prime (10122000601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061000000 + 5061000001.

It is an arithmetic number, because the mean of its divisors is an integer number (5061000001).

Almost surely, 210122000001 is an apocalyptic number.

It is an amenable number.

10122000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10122000001 is an equidigital number, since it uses as much as digits as its factorization.

10122000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10122000001 its reverse (10000022101), we get a palindrome (20122022102).

The spelling of 10122000001 in words is "ten billion, one hundred twenty-two million, one", and thus it is an aban number.