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212020202101111 = 1761204455354003
BaseRepresentation
bin110000001101010011001100…
…110101001101100101110111
31000210200221012102112020012221
4300031103030311031211313
5210242214333214213421
62030532423004423211
762441645154342145
oct6015231465154567
91023627172466187
10212020202101111
1161613298804788
121b942b28847b07
13913c55b197b41
143a4db92696595
15197a1ea84c841
hexc0d4ccd4d977

212020202101111 has 8 divisors (see below), whose sum is σ = 228172175068464. Its totient is φ = 196277139841920.

The previous prime is 212020202101109. The next prime is 212020202101139. The reversal of 212020202101111 is 111101202020212.

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 212020202101111 - 21 = 212020202101109 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 (212020202101711) 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, 102227675965 + ... + 102227678038.

It is an arithmetic number, because the mean of its divisors is an integer number (28521521883558).

Almost surely, 2212020202101111 is an apocalyptic number.

212020202101111 is a deficient number, since it is larger than the sum of its proper divisors (16151972967353).

212020202101111 is a wasteful number, since it uses less digits than its factorization.

212020202101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204455354081.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212020202101111 its reverse (111101202020212), we get a palindrome (323121404121323).

The spelling of 212020202101111 in words is "two hundred twelve trillion, twenty billion, two hundred two million, one hundred one thousand, one hundred eleven".

Divisors: 1 17 61 1037 204455354003 3475741018051 12471776594183 212020202101111