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10211212000000 = 285611232073
BaseRepresentation
bin1001010010010111101110…
…1010011111101100000000
31100011011220220212112220001
42110211323222133230000
52314300030233000000
633414544355125344
72102510231621044
oct224457352375400
940134826775801
1010211212000000
113287606a71820
12118b0022a3854
13590bb429b30b
14274322308024
1512a93c88146a
hex9497ba9fb00

10211212000000 has 252 divisors, whose sum is σ = 27794131886808. Its totient is φ = 3713152000000.

The previous prime is 10211211999959. The next prime is 10211212000001. The reversal of 10211212000000 is 21211201.

10211212000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (10211212000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 43883964 + ... + 44116036.

It is an arithmetic number, because the mean of its divisors is an integer number (110294174154).

Almost surely, 210211212000000 is an apocalyptic number.

10211212000000 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 10211212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13897065943404).

10211212000000 is an abundant number, since it is smaller than the sum of its proper divisors (17582919886808).

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

10211212000000 is an frugal number, since it uses more digits than its factorization.

10211212000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232130 (or 232091 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10211212000000 its reverse (21211201), we get a palindrome (10211233211201).

The spelling of 10211212000000 in words is "ten trillion, two hundred eleven billion, two hundred twelve million", and thus it is an aban number.