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12101101100000 = 25551123132261
BaseRepresentation
bin1011000000011000000111…
…0101010001101111100000
31120211212001112122010021122
42300012001311101233200
53041231023340200000
641423100305311412
72356163365125053
oct260060165215740
946755045563248
1012101101100000
113946059106700
121435336335568
1369a18a376893
142db9a6d86a9a
1515eb9db5c085
hexb0181d51be0

12101101100000 has 432 divisors, whose sum is σ = 33788249663616. Its totient is φ = 4258320000000.

The previous prime is 12101101099993. The next prime is 12101101100003. The reversal of 12101101100000 is 110110121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101101100003) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 375083870 + ... + 375116130.

It is an arithmetic number, because the mean of its divisors is an integer number (78213540888).

Almost surely, 212101101100000 is an apocalyptic number.

12101101100000 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 12101101100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16894124831808).

12101101100000 is an abundant number, since it is smaller than the sum of its proper divisors (21687148563616).

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

12101101100000 is an equidigital number, since it uses as much as digits as its factorization.

12101101100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32349 (or 32310 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 12101101100000 its reverse (110110121), we get a palindrome (12101211210121).

The spelling of 12101101100000 in words is "twelve trillion, one hundred one billion, one hundred one million, one hundred thousand".