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12201002101 = 101120802001
BaseRepresentation
bin10110101110011110…
…01000010001110101
31011111022100010101201
423113033020101311
5144441424031401
65334405452501
7611231543461
oct132717102165
934438303351
1012201002101
1151a1169512
122446111131
1311c59acc92
1483a5c14a1
154b6226b01
hex2d73c8475

12201002101 has 4 divisors (see below), whose sum is σ = 12321804204. Its totient is φ = 12080200000.

The previous prime is 12201002087. The next prime is 12201002113. The reversal of 12201002101 is 10120010221.

Adding to 12201002101 its reverse (10120010221), we get a palindrome (22321012322).

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 10027018225 + 2173983876 = 100135^2 + 46626^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201002101 - 217 = 12200871029 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 (12201002161) 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, 60400900 + ... + 60401101.

It is an arithmetic number, because the mean of its divisors is an integer number (3080451051).

Almost surely, 212201002101 is an apocalyptic number.

It is an amenable number.

12201002101 is a deficient number, since it is larger than the sum of its proper divisors (120802103).

12201002101 is a wasteful number, since it uses less digits than its factorization.

12201002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120802102.

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

The spelling of 12201002101 in words is "twelve billion, two hundred one million, two thousand, one hundred one".

Divisors: 1 101 120802001 12201002101