Search a number
-
+
12110202220 = 22529107195137
BaseRepresentation
bin10110100011101001…
…10000010101101100
31011020222111000101011
423101310300111230
5144300202432340
65321403355004
7606050010004
oct132164602554
934228430334
1012110202220
115154991196
12241b822a64
1311acc3ac3c
1482c507004
154ad28d0ea
hex2d1d3056c

12110202220 has 48 divisors (see below), whose sum is σ = 26554379040. Its totient is φ = 4633309184.

The previous prime is 12110202211. The next prime is 12110202239. The reversal of 12110202220 is 2220201121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12110202220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35509 + ... + 159628.

It is an arithmetic number, because the mean of its divisors is an integer number (553216230).

Almost surely, 212110202220 is an apocalyptic number.

12110202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110202220 is an abundant number, since it is smaller than the sum of its proper divisors (14444176820).

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

12110202220 is a wasteful number, since it uses less digits than its factorization.

12110202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195282 (or 195280 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12110202220 its reverse (2220201121), we get a palindrome (14330403341).

The spelling of 12110202220 in words is "twelve billion, one hundred ten million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 107 116 145 214 290 428 535 580 1070 2140 3103 6206 12412 15515 31030 62060 195137 390274 780548 975685 1951370 3902740 5658973 11317946 20879659 22635892 28294865 41759318 56589730 83518636 104398295 113179460 208796590 417593180 605510111 1211020222 2422040444 3027550555 6055101110 12110202220