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212012200202101 = 1335346200087209
BaseRepresentation
bin110000001101001011101111…
…111000011000111101110101
31000210200011112202112122100221
4300031023233320120331311
5210242101441222431401
62030525021000134341
762441242651332415
oct6015135770307565
91023604482478327
10212012200202101
116160a96195a602
121b941474a673b1
13913b88443b560
143a4d633a56645
151979dcd0c97a1
hexc0d2efe18f75

212012200202101 has 8 divisors (see below), whose sum is σ = 228967632212760. Its totient is φ = 195149168366592.

The previous prime is 212012200202069. The next prime is 212012200202167. The reversal of 212012200202101 is 101202002210212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37162752207876 + 174849447994225 = 6096126^2 + 13223065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212012200202101 - 25 = 212012200202069 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 (212012200203101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23100039016 + ... + 23100048193.

It is an arithmetic number, because the mean of its divisors is an integer number (28620954026595).

Almost surely, 2212012200202101 is an apocalyptic number.

It is an amenable number.

212012200202101 is a deficient number, since it is larger than the sum of its proper divisors (16955432010659).

212012200202101 is a wasteful number, since it uses less digits than its factorization.

212012200202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46200087575.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212012200202101 its reverse (101202002210212), we get a palindrome (313214202412313).

The spelling of 212012200202101 in words is "two hundred twelve trillion, twelve billion, two hundred million, two hundred two thousand, one hundred one".

Divisors: 1 13 353 4589 46200087209 600601133717 16308630784777 212012200202101