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12101122203020 = 2251931845058429
BaseRepresentation
bin1011000000011000001100…
…0101110001110110001100
31120211212010000100021011222
42300012003011301312030
53041231044240444040
641423102341502512
72356164042366644
oct260060305616614
946755100307158
1012101122203020
11394606a00a714
121435341411a38
1369a191855086
142db9a9abb524
1515eba0929bb5
hexb0183171d8c

12101122203020 has 24 divisors (see below), whose sum is σ = 26749849081200. Its totient is φ = 4585688413632.

The previous prime is 12101122203013. The next prime is 12101122203031. The reversal of 12101122203020 is 2030222110121.

It is a self number, because there is not a number n which added to its sum of digits gives 12101122203020.

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, 15922528835 + ... + 15922529594.

It is an arithmetic number, because the mean of its divisors is an integer number (1114577045050).

Almost surely, 212101122203020 is an apocalyptic number.

12101122203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101122203020 is an abundant number, since it is smaller than the sum of its proper divisors (14648726878180).

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

12101122203020 is a wasteful number, since it uses less digits than its factorization.

12101122203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31845058457 (or 31845058455 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12101122203020 its reverse (2030222110121), we get a palindrome (14131344313141).

The spelling of 12101122203020 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, two hundred three thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 31845058429 63690116858 127380233716 159225292145 318450584290 605056110151 636901168580 1210112220302 2420224440604 3025280550755 6050561101510 12101122203020