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121101400000 = 2655786501
BaseRepresentation
bin111000011001000110…
…1001011011111000000
3102120120202122112021001
41300302031023133000
53441003424300000
6131344435141344
711515001626060
oct1606215133700
9376522575231
10121101400000
11473a4646259
121b578744854
13b55c438349
145c0b72b3a0
15323ba1646a
hex1c3234b7c0

121101400000 has 168 divisors, whose sum is σ = 343282840992. Its totient is φ = 41520000000.

The previous prime is 121101399997. The next prime is 121101400001. The reversal of 121101400000 is 4101121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121101400000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101400001) 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 23 ways as a sum of consecutive naturals, for example, 1356750 + ... + 1443250.

It is an arithmetic number, because the mean of its divisors is an integer number (2043350244).

Almost surely, 2121101400000 is an apocalyptic number.

121101400000 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 121101400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171641420496).

121101400000 is an abundant number, since it is smaller than the sum of its proper divisors (222181440992).

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

121101400000 is an frugal number, since it uses more digits than its factorization.

121101400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86545 (or 86515 counting only the distinct ones).

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

Adding to 121101400000 its reverse (4101121), we get a palindrome (121105501121).

The spelling of 121101400000 in words is "one hundred twenty-one billion, one hundred one million, four hundred thousand".