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12212020221230 = 2538031336724023
BaseRepresentation
bin1011000110110101010100…
…1000001001010100101110
31121020110100200112021221202
42301231111020021110232
53100040204134034410
641550042531125502
72400201150113204
oct261552510112456
947213320467852
1012212020221230
1139890a8059135
121452930a43892
136a77861035ab
143030ca263074
151629e17abca5
hexb1b5520952e

12212020221230 has 32 divisors (see below), whose sum is σ = 21989976712704. Its totient is φ = 4882955014816.

The previous prime is 12212020221221. The next prime is 12212020221253. The reversal of 12212020221230 is 3212202021221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508334999 + ... + 508359021.

It is an arithmetic number, because the mean of its divisors is an integer number (687186772272).

Almost surely, 212212020221230 is an apocalyptic number.

12212020221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212020221230 is a deficient number, since it is larger than the sum of its proper divisors (9777956491474).

12212020221230 is a wasteful number, since it uses less digits than its factorization.

12212020221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41200.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12212020221230 its reverse (3212202021221), we get a palindrome (15424222242451).

The spelling of 12212020221230 in words is "twelve trillion, two hundred twelve billion, twenty million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 3803 7606 13367 19015 24023 26734 38030 48046 66835 120115 133670 240230 50834701 91359469 101669402 182718938 254173505 321115441 456797345 508347010 642230882 913594690 1605577205 3211154410 1221202022123 2442404044246 6106010110615 12212020221230