Search a number
-
+
12200202121 = 83547268721
BaseRepresentation
bin10110101110011000…
…00100111110001001
31011111020211111000211
423113030010332021
5144441222431441
65334340401121
7611222002252
oct132714047611
934436744024
1012200202121
1151a0772478
1224459a61a1
1311c578cb13
1483a453b29
154b6119a81
hex2d7304f89

12200202121 has 8 divisors (see below), whose sum is σ = 12369811104. Its totient is φ = 12031131840.

The previous prime is 12200202109. The next prime is 12200202229. The reversal of 12200202121 is 12120200221.

It is a happy number.

12200202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12200202121 - 29 = 12200201609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12200206121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88960 + ... + 179761.

It is an arithmetic number, because the mean of its divisors is an integer number (1546226388).

Almost surely, 212200202121 is an apocalyptic number.

It is an amenable number.

12200202121 is a deficient number, since it is larger than the sum of its proper divisors (169608983).

12200202121 is an equidigital number, since it uses as much as digits as its factorization.

12200202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269351.

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

Adding to 12200202121 its reverse (12120200221), we get a palindrome (24320402342).

The spelling of 12200202121 in words is "twelve billion, two hundred million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 83 547 45401 268721 22303843 146990387 12200202121