Search a number
-
+
12242224220 = 2252112901001
BaseRepresentation
bin10110110011011000…
…11000010001011100
31011121011220102111212
423121230120101130
5200033002133340
65342441203552
7612242121542
oct133154302134
934534812455
1012242224220
115212464286
122457a905b8
1312013b3b75
14841c71d92
154b9b6aa65
hex2d9b1845c

12242224220 has 24 divisors (see below), whose sum is σ = 25830521808. Its totient is φ = 4873680000.

The previous prime is 12242224219. The next prime is 12242224303. The reversal of 12242224220 is 2242224221.

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, 1446281 + ... + 1454720.

It is an arithmetic number, because the mean of its divisors is an integer number (1076271742).

Almost surely, 212242224220 is an apocalyptic number.

12242224220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12242224220 is an abundant number, since it is smaller than the sum of its proper divisors (13588297588).

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

12242224220 is a wasteful number, since it uses less digits than its factorization.

12242224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901221 (or 2901219 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 12242224220 its reverse (2242224221), we get a palindrome (14484448441).

Subtracting from 12242224220 its reverse (2242224221), we obtain a palindrome (9999999999).

The spelling of 12242224220 in words is "twelve billion, two hundred forty-two million, two hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 211 422 844 1055 2110 4220 2901001 5802002 11604004 14505005 29010010 58020020 612111211 1224222422 2448444844 3060556055 6121112110 12242224220