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10121012201 = 46721672403
BaseRepresentation
bin10010110110100001…
…00110001111101001
3222010100110200122202
421123100212033221
5131211434342301
64352144225545
7505544120126
oct113320461751
928110420582
1010121012201
1143240582a3
121b6560b2b5
13c53aaa021
146c026374d
153e381366b
hex25b4263e9

10121012201 has 4 divisors (see below), whose sum is σ = 10142685072. Its totient is φ = 10099339332.

The previous prime is 10121012177. The next prime is 10121012233. The reversal of 10121012201 is 10221012101.

10121012201 is digitally balanced in base 2, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10221012101 = 15061678641.

It is a cyclic number.

It is not a de Polignac number, because 10121012201 - 222 = 10116817897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121012801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10835735 + ... + 10836668.

It is an arithmetic number, because the mean of its divisors is an integer number (2535671268).

Almost surely, 210121012201 is an apocalyptic number.

It is an amenable number.

10121012201 is a deficient number, since it is larger than the sum of its proper divisors (21672871).

10121012201 is an equidigital number, since it uses as much as digits as its factorization.

10121012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21672870.

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

Adding to 10121012201 its reverse (10221012101), we get a palindrome (20342024302).

The spelling of 10121012201 in words is "ten billion, one hundred twenty-one million, twelve thousand, two hundred one".

Divisors: 1 467 21672403 10121012201