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12300121122220 = 2252712269395041
BaseRepresentation
bin1011001011111101100001…
…0110011010010110101100
31121112212202120220202222201
42302333120112122112230
53103011122001402340
642054333031151244
72406440316322021
oct262773026322654
947485676822881
1012300121122220
113a124a778a008
121467a19815524
136b2b86649139
14307486c4d548
15164e4b05779a
hexb2fd859a5ac

12300121122220 has 24 divisors (see below), whose sum is σ = 25925568959808. Its totient is φ = 4901893286400.

The previous prime is 12300121122203. The next prime is 12300121122277. The reversal of 12300121122220 is 2222112100321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134692101 + ... + 1134702940.

It is an arithmetic number, because the mean of its divisors is an integer number (1080232039992).

Almost surely, 212300121122220 is an apocalyptic number.

12300121122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12300121122220 is an abundant number, since it is smaller than the sum of its proper divisors (13625447837588).

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

12300121122220 is a wasteful number, since it uses less digits than its factorization.

12300121122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269395321 (or 2269395319 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12300121122220 its reverse (2222112100321), we get a palindrome (14522233222541).

The spelling of 12300121122220 in words is "twelve trillion, three hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2710 5420 2269395041 4538790082 9077580164 11346975205 22693950410 45387900820 615006056111 1230012112222 2460024224444 3075030280555 6150060561110 12300121122220