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10212102001 = 12977873633
BaseRepresentation
bin10011000001011000…
…00100111101110001
3222100200212112101001
421200230010331301
5131403244231001
64405200442001
7511031302063
oct114054047561
928320775331
1010212102001
114370513422
121b90019301
13c6992100a
146cc3b5733
153eb808001
hex260b04f71

10212102001 has 4 divisors (see below), whose sum is σ = 10219976932. Its totient is φ = 10204227072.

The previous prime is 10212101983. The next prime is 10212102013. The reversal of 10212102001 is 10020121201.

10212102001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10020121201 = 34928710949.

It can be written as a sum of positive squares in 2 ways, for example, as 9516197601 + 695904400 = 97551^2 + 26380^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212102001 - 29 = 10212101489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212102041) 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, 3935520 + ... + 3938113.

It is an arithmetic number, because the mean of its divisors is an integer number (2554994233).

Almost surely, 210212102001 is an apocalyptic number.

It is an amenable number.

10212102001 is a deficient number, since it is larger than the sum of its proper divisors (7874931).

10212102001 is an equidigital number, since it uses as much as digits as its factorization.

10212102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874930.

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

Adding to 10212102001 its reverse (10020121201), we get a palindrome (20232223202).

The spelling of 10212102001 in words is "ten billion, two hundred twelve million, one hundred two thousand, one".

Divisors: 1 1297 7873633 10212102001