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12120100212020 = 2254991214438899
BaseRepresentation
bin1011000001011110111001…
…0001001000110100110100
31120220200002121211000100012
42300113232101020310310
53042033431123241040
641435521442235352
72360435244662153
oct260275621106464
946820077730305
1012120100212020
113953118665779
121438b59055b58
1369bbc75930b8
142dc88a36d59a
15160411abd865
hexb05ee448d34

12120100212020 has 24 divisors (see below), whose sum is σ = 25503216900000. Its totient is φ = 4838324569632.

The previous prime is 12120100211977. The next prime is 12120100212041. The reversal of 12120100212020 is 2021200102121.

It is a junction number, because it is equal to n+sod(n) for n = 12120100211986 and 12120100212004.

It is a congruent number.

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, 607209470 + ... + 607229429.

It is an arithmetic number, because the mean of its divisors is an integer number (1062634037500).

Almost surely, 212120100212020 is an apocalyptic number.

12120100212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120100212020 is an abundant number, since it is smaller than the sum of its proper divisors (13383116687980).

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

12120100212020 is a wasteful number, since it uses less digits than its factorization.

12120100212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214439407 (or 1214439405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120100212020 its reverse (2021200102121), we get a palindrome (14141300314141).

The spelling of 12120100212020 in words is "twelve trillion, one hundred twenty billion, one hundred million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 499 998 1996 2495 4990 9980 1214438899 2428877798 4857755596 6072194495 12144388990 24288777980 606005010601 1212010021202 2424020042404 3030025053005 6060050106010 12120100212020