Search a number
-
+
12101320210220 = 2251099615502551
BaseRepresentation
bin1011000000011000111011…
…1001000111011100101100
31120211212121210221001222222
42300012032321013130230
53041232000433211340
641423134133454512
72356201665414263
oct260061671073454
946755553831888
1012101320210220
11394616086142a
1214353977a1438
1369a1c38922b7
142db9c81015da
1515ebb2edd8b5
hexb018ee4772c

12101320210220 has 24 divisors (see below), whose sum is σ = 25413008167008. Its totient is φ = 4840483184000.

The previous prime is 12101320210211. The next prime is 12101320210271. The reversal of 12101320210220 is 2201202310121.

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, 552056 + ... + 4950495.

It is an arithmetic number, because the mean of its divisors is an integer number (1058875340292).

Almost surely, 212101320210220 is an apocalyptic number.

12101320210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101320210220 is an abundant number, since it is smaller than the sum of its proper divisors (13311687956788).

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

12101320210220 is a wasteful number, since it uses less digits than its factorization.

12101320210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612521 (or 5612519 counting only the distinct ones).

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

Adding to 12101320210220 its reverse (2201202310121), we get a palindrome (14302522520341).

The spelling of 12101320210220 in words is "twelve trillion, one hundred one billion, three hundred twenty million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109961 219922 439844 549805 1099610 2199220 5502551 11005102 22010204 27512755 55025510 110051020 605066010511 1210132021022 2420264042044 3025330052555 6050660105110 12101320210220