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BaseRepresentation
bin10110101110011110…
…01010001101010010
31011111022100112020100
423113033022031102
5144441424310002
65334405553230
7611231605506
oct132717121522
934438315210
1012201010002
1151a1174445
122446115816
1311c59b375c
1483a5c4306
154b622911c
hex2d73ca352

12201010002 has 12 divisors (see below), whose sum is σ = 26435521710. Its totient is φ = 4067003328.

The previous prime is 12201010001. The next prime is 12201010021. The reversal of 12201010002 is 20001010221.

Adding to 12201010002 its reverse (20001010221), we get a palindrome (32202020223).

It can be written as a sum of positive squares in only one way, i.e., 11805039801 + 395970201 = 108651^2 + 19899^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12201010001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338916927 + ... + 338916962.

Almost surely, 212201010002 is an apocalyptic number.

12201010002 is an abundant number, since it is smaller than the sum of its proper divisors (14234511708).

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

12201010002 is a wasteful number, since it uses less digits than its factorization.

12201010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677833897 (or 677833894 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The spelling of 12201010002 in words is "twelve billion, two hundred one million, ten thousand, two".