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10200211121 = 12780316623
BaseRepresentation
bin10010111111111101…
…01101111010110001
3222022212111102011002
421133332231322301
5131342223223441
64404053531345
7510525235562
oct113776557261
928285442132
1010200211121
114364831651
121b88043b55
13c673198a9
146ca99c169
153ea759b9b
hex25ffadeb1

10200211121 has 4 divisors (see below), whose sum is σ = 10280527872. Its totient is φ = 10119894372.

The previous prime is 10200211079. The next prime is 10200211129. The reversal of 10200211121 is 12111200201.

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 a de Polignac number, because none of the positive numbers 2k-10200211121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40158185 + ... + 40158438.

It is an arithmetic number, because the mean of its divisors is an integer number (2570131968).

Almost surely, 210200211121 is an apocalyptic number.

It is an amenable number.

10200211121 is a deficient number, since it is larger than the sum of its proper divisors (80316751).

10200211121 is an equidigital number, since it uses as much as digits as its factorization.

10200211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80316750.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10200211121 its reverse (12111200201), we get a palindrome (22311411322).

The spelling of 10200211121 in words is "ten billion, two hundred million, two hundred eleven thousand, one hundred twenty-one".

Divisors: 1 127 80316623 10200211121