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12020220122020 = 2251154637364191
BaseRepresentation
bin1010111011101010110011…
…1100110101001110100100
31120120010021210210201200121
42232322230330311032210
53033414402322401040
641322002441251324
72350301155141405
oct256725474651644
946503253721617
1012020220122020
11391482398a850
121421723493b44
1369266a878626
142d7ad32039ac
1515ca1816cc4a
hexaeeacf353a4

12020220122020 has 24 divisors (see below), whose sum is σ = 27537231552768. Its totient is φ = 4370989135200.

The previous prime is 12020220121993. The next prime is 12020220122129. The reversal of 12020220122020 is 2022102202021.

It is a junction number, because it is equal to n+sod(n) for n = 12020220121985 and 12020220122003.

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, 27318681876 + ... + 27318682315.

It is an arithmetic number, because the mean of its divisors is an integer number (1147384648032).

Almost surely, 212020220122020 is an apocalyptic number.

12020220122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020220122020 is an abundant number, since it is smaller than the sum of its proper divisors (15517011430748).

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

12020220122020 is a wasteful number, since it uses less digits than its factorization.

12020220122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54637364211 (or 54637364209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12020220122020 its reverse (2022102202021), we get a palindrome (14042322324041).

The spelling of 12020220122020 in words is "twelve trillion, twenty billion, two hundred twenty million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 54637364191 109274728382 218549456764 273186820955 546373641910 601011006101 1092747283820 1202022012202 2404044024404 3005055030505 6010110061010 12020220122020