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12212010000 = 243254472887
BaseRepresentation
bin10110101111110010…
…00111110000010000
31011112002001101101200
423113321013300100
5200002233310000
65335441431200
7611424241461
oct132771076020
934462041350
1012212010000
1151a73a7953
12244993b500
1311c8065528
1483bc48d68
154b719d500
hex2d7e47c10

12212010000 has 300 divisors, whose sum is σ = 43630933632. Its totient is φ = 3186144000.

The previous prime is 12212009989. The next prime is 12212010007. The reversal of 12212010000 is 1021221.

12212010000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (300).

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 (12212010007) 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 59 ways as a sum of consecutive naturals, for example, 4228557 + ... + 4231443.

Almost surely, 212212010000 is an apocalyptic number.

12212010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21815466816).

12212010000 is an abundant number, since it is smaller than the sum of its proper divisors (31418923632).

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

12212010000 is a wasteful number, since it uses less digits than its factorization.

12212010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2944 counting only the distinct ones).

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

Adding to 12212010000 its reverse (1021221), we get a palindrome (12213031221).

The spelling of 12212010000 in words is "twelve billion, two hundred twelve million, ten thousand".