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12200122212 = 2231016676851
BaseRepresentation
bin10110101110010111…
…10001011101100100
31011111020200102102020
423113023301131210
5144441212402322
65334334543140
7611221220265
oct132713613544
934436612366
1012200122212
1151a0718433
122445967ab0
1311c5762635
1483a43296c
154b610105c
hex2d72f1764

12200122212 has 12 divisors (see below), whose sum is σ = 28466951856. Its totient is φ = 4066707400.

The previous prime is 12200122177. The next prime is 12200122213. The reversal of 12200122212 is 21222100221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12200122191 and 12200122200.

It is not an unprimeable number, because it can be changed into a prime (12200122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508338414 + ... + 508338437.

It is an arithmetic number, because the mean of its divisors is an integer number (2372245988).

Almost surely, 212200122212 is an apocalyptic number.

12200122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12200122212 is an abundant number, since it is smaller than the sum of its proper divisors (16266829644).

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

12200122212 is a wasteful number, since it uses less digits than its factorization.

12200122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016676858 (or 1016676856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12200122212 its reverse (21222100221), we get a palindrome (33422222433).

The spelling of 12200122212 in words is "twelve billion, two hundred million, one hundred twenty-two thousand, two hundred twelve".