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12010102121200 = 2452531934336779
BaseRepresentation
bin1010111011000101000111…
…0111101110001011110000
31120112011011200000000212111
42232301101313232023300
53033233142120334300
641313210441335104
72346462345432631
oct256612167561360
946464150000774
1012010102121200
1139105015a9aa7
12141b77aa97494
136917175b41b1
142d7413525888
1515c624c519ba
hexaec51dee2f0

12010102121200 has 240 divisors, whose sum is σ = 29623631778720. Its totient is φ = 4677457674240.

The previous prime is 12010102121167. The next prime is 12010102121209. The reversal of 12010102121200 is 212120101021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010102121209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1771659411 + ... + 1771666189.

It is an arithmetic number, because the mean of its divisors is an integer number (123431799078).

Almost surely, 212010102121200 is an apocalyptic number.

12010102121200 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 12010102121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14811815889360).

12010102121200 is an abundant number, since it is smaller than the sum of its proper divisors (17613529657520).

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

12010102121200 is a wasteful number, since it uses less digits than its factorization.

12010102121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7476 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12010102121200 its reverse (212120101021), we get a palindrome (12222222222221).

The spelling of 12010102121200 in words is "twelve trillion, ten billion, one hundred two million, one hundred twenty-one thousand, two hundred".