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10121202101 = 29349006969
BaseRepresentation
bin10010110110100010…
…10100100110110101
3222010100211100011002
421123101110212311
5131212011431401
64352152253045
7505545540563
oct113321244665
928110740132
1010121202101
114324177a3a
121b656a1185
13c53b455aa
146c02b2a33
153e384ea6b
hex25b4549b5

10121202101 has 4 divisors (see below), whose sum is σ = 10470209100. Its totient is φ = 9772195104.

The previous prime is 10121202083. The next prime is 10121202103. The reversal of 10121202101 is 10120212101.

10121202101 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3880044100 + 6241158001 = 62290^2 + 79001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10121202101 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 (10121202103) 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, 174503456 + ... + 174503513.

It is an arithmetic number, because the mean of its divisors is an integer number (2617552275).

Almost surely, 210121202101 is an apocalyptic number.

It is an amenable number.

10121202101 is a deficient number, since it is larger than the sum of its proper divisors (349006999).

10121202101 is an equidigital number, since it uses as much as digits as its factorization.

10121202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349006998.

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

Adding to 10121202101 its reverse (10120212101), we get a palindrome (20241414202).

The spelling of 10121202101 in words is "ten billion, one hundred twenty-one million, two hundred two thousand, one hundred one".

Divisors: 1 29 349006969 10121202101