Search a number
-
+
12000220220 = 225600011011
BaseRepresentation
bin10110010110100010…
…01101010000111100
31010222022112100102202
423023101031100330
5144034024021340
65302434211032
7603243121532
oct131321152074
933868470382
1012000220220
1150a88a207a
1223aaa23a78
131193210b31
1481ba78152
154a37b5c15
hex2cb44d43c

12000220220 has 12 divisors (see below), whose sum is σ = 25200462504. Its totient is φ = 4800088080.

The previous prime is 12000220157. The next prime is 12000220223. The reversal of 12000220220 is 2202200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000220223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300005486 + ... + 300005525.

It is an arithmetic number, because the mean of its divisors is an integer number (2100038542).

Almost surely, 212000220220 is an apocalyptic number.

12000220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000220220 is an abundant number, since it is smaller than the sum of its proper divisors (13200242284).

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

12000220220 is a wasteful number, since it uses less digits than its factorization.

12000220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600011020 (or 600011018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 12000220220 its reverse (2202200021), we get a palindrome (14202420241).

The spelling of 12000220220 in words is "twelve billion, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 600011011 1200022022 2400044044 3000055055 6000110110 12000220220