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10111122001 = 83121820747
BaseRepresentation
bin10010110101010101…
…10111101001010001
3222002122212012212001
421122222313221101
5131201421401001
64351152234001
7505364055541
oct113252675121
928078765761
1010111122001
114319512682
121b6223b901
13c51a26436
146bcc0b321
153e2a0d001
hex25aab7a51

10111122001 has 4 divisors (see below), whose sum is σ = 10232942832. Its totient is φ = 9989301172.

The previous prime is 10111121957. The next prime is 10111122013. The reversal of 10111122001 is 10022111101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10111122001 - 213 = 10111113809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111122031) 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, 60910291 + ... + 60910456.

It is an arithmetic number, because the mean of its divisors is an integer number (2558235708).

Almost surely, 210111122001 is an apocalyptic number.

It is an amenable number.

10111122001 is a deficient number, since it is larger than the sum of its proper divisors (121820831).

10111122001 is an equidigital number, since it uses as much as digits as its factorization.

10111122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121820830.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10111122001 its reverse (10022111101), we get a palindrome (20133233102).

The spelling of 10111122001 in words is "ten billion, one hundred eleven million, one hundred twenty-two thousand, one".

Divisors: 1 83 121820747 10111122001