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12210312020202 = 23525124098807
BaseRepresentation
bin1011000110101110111101…
…0011111000000011101010
31121020021221122020200200000
42301223233103320003222
53100023204334121302
641545201230323430
72400110625463242
oct261535723700352
947207848220600
1012210312020202
1139884008a444a
121452534959576
136a757324525a
14302da7444b22
1516294183831c
hexb1aef4f80ea

12210312020202 has 24 divisors (see below), whose sum is σ = 27435515898336. Its totient is φ = 4070104006572.

The previous prime is 12210312020173. The next prime is 12210312020359. The reversal of 12210312020202 is 20202021301221.

12210312020202 is a `hidden beast` number, since 122 + 10 + 312 + 0 + 20 + 202 = 666.

It is a super-2 number, since 2×122103120202022 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12562048918 + ... + 12562049889.

It is an arithmetic number, because the mean of its divisors is an integer number (1143146495764).

Almost surely, 212210312020202 is an apocalyptic number.

12210312020202 is an abundant number, since it is smaller than the sum of its proper divisors (15225203878134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210312020202 is an equidigital number, since it uses as much as digits as its factorization.

12210312020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25124098824 (or 25124098812 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12210312020202 its reverse (20202021301221), we get a palindrome (32412333321423).

The spelling of 12210312020202 in words is "twelve trillion, two hundred ten billion, three hundred twelve million, twenty thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 25124098807 50248197614 75372296421 150744592842 226116889263 452233778526 678350667789 1356701335578 2035052003367 4070104006734 6105156010101 12210312020202