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12220220203 = 17322291783
BaseRepresentation
bin10110110000110000…
…11100001100101011
31011112122111111200021
423120120130030223
5200011334021303
65340333421311
7611554105102
oct133030341453
934478444607
1012220220203
115200aa5344
12245063a837
1311c997b539
1483cd85039
154b7c70ebd
hex2d861c32b

12220220203 has 12 divisors (see below), whose sum is σ = 12351862960. Its totient is φ = 12089743776.

The previous prime is 12220220171. The next prime is 12220220269. The reversal of 12220220203 is 30202202221.

It is not a de Polignac number, because 12220220203 - 25 = 12220220171 is a prime.

It is a super-2 number, since 2×122202202032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220230203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6852850 + ... + 6854632.

Almost surely, 212220220203 is an apocalyptic number.

12220220203 is a deficient number, since it is larger than the sum of its proper divisors (131642757).

12220220203 is an equidigital number, since it uses as much as digits as its factorization.

12220220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12220220203 its reverse (30202202221), we get a palindrome (42422422424).

The spelling of 12220220203 in words is "twelve billion, two hundred twenty million, two hundred twenty thousand, two hundred three".

Divisors: 1 173 229 1783 29929 39617 308459 408307 6853741 53363407 70637111 12220220203