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10201022101 = 25739692693
BaseRepresentation
bin10011000000000011…
…10011111010010101
3222022221000121121101
421200001303322111
5131342430201401
64404123150101
7510535154134
oct114001637225
928287017541
1010201022101
114365235986
121b88375331
13c67541a6a
146cab2d91b
153ea86a101
hex260073e95

10201022101 has 4 divisors (see below), whose sum is σ = 10240715052. Its totient is φ = 10161329152.

The previous prime is 10201022093. The next prime is 10201022129. The reversal of 10201022101 is 10122010201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10122010201 = 19532737379.

It can be written as a sum of positive squares in 2 ways, for example, as 10120561201 + 80460900 = 100601^2 + 8970^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201022101 - 23 = 10201022093 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 (10201022191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19846090 + ... + 19846603.

It is an arithmetic number, because the mean of its divisors is an integer number (2560178763).

Almost surely, 210201022101 is an apocalyptic number.

It is an amenable number.

10201022101 is a deficient number, since it is larger than the sum of its proper divisors (39692951).

10201022101 is an equidigital number, since it uses as much as digits as its factorization.

10201022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39692950.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10201022101 its reverse (10122010201), we get a palindrome (20323032302).

The spelling of 10201022101 in words is "ten billion, two hundred one million, twenty-two thousand, one hundred one".

Divisors: 1 257 39692693 10201022101