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12100102101 = 321970760831
BaseRepresentation
bin10110100010011100…
…01110011111010101
31011020021110212121200
423101032032133111
5144240111231401
65320403103113
7605565112413
oct132116163725
934207425550
1012100102101
11514a21288a
122418371a99
1311aab12939
1482b0382b3
154ac445686
hex2d138e7d5

12100102101 has 12 divisors (see below), whose sum is σ = 18397816320. Its totient is φ = 7642169640.

The previous prime is 12100102097. The next prime is 12100102117. The reversal of 12100102101 is 10120100121.

It is a happy number.

It is not a de Polignac number, because 12100102101 - 22 = 12100102097 is a prime.

It is a super-2 number, since 2×121001021012 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100102171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35380245 + ... + 35380586.

It is an arithmetic number, because the mean of its divisors is an integer number (1533151360).

Almost surely, 212100102101 is an apocalyptic number.

It is an amenable number.

12100102101 is a deficient number, since it is larger than the sum of its proper divisors (6297714219).

12100102101 is a wasteful number, since it uses less digits than its factorization.

12100102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70760856 (or 70760853 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12100102101 its reverse (10120100121), we get a palindrome (22220202222).

The spelling of 12100102101 in words is "twelve billion, one hundred million, one hundred two thousand, one hundred one".

Divisors: 1 3 9 19 57 171 70760831 212282493 636847479 1344455789 4033367367 12100102101