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12212012002 = 28968606809
BaseRepresentation
bin10110101111110010…
…01000001111100010
31011112002001111010211
423113321020033202
5200002233341002
65335441444334
7611424250351
oct132771101742
934462044124
1012212012002
1151a73a9403
1224499406aa
1311c8066408
1483bc49998
154b719ddd7
hex2d7e483e2

12212012002 has 8 divisors (see below), whose sum is σ = 18523838700. Its totient is φ = 6037399104.

The previous prime is 12212011993. The next prime is 12212012011. The reversal of 12212012002 is 20021021221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12212011993) and next prime (12212012011).

It can be written as a sum of positive squares in 2 ways, for example, as 11206551321 + 1005460681 = 105861^2 + 31709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34303227 + ... + 34303582.

Almost surely, 212212012002 is an apocalyptic number.

12212012002 is a deficient number, since it is larger than the sum of its proper divisors (6311826698).

12212012002 is an equidigital number, since it uses as much as digits as its factorization.

12212012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68606900.

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

Adding to 12212012002 its reverse (20021021221), we get a palindrome (32233033223).

The spelling of 12212012002 in words is "twelve billion, two hundred twelve million, twelve thousand, two".

Divisors: 1 2 89 178 68606809 137213618 6106006001 12212012002