| Base | Representation |
|---|---|
| bin | 11011100000111100010010… |
| … | …010001000010011101010000 |
| 3 | 120212110112120100111111011110 |
| 4 | 123200330102101002131100 |
| 5 | 111330121022031134300 |
| 6 | 1105211405054213320 |
| 7 | 34326520431444315 |
| oct | 3340742221023520 |
| 9 | 525415510444143 |
| 10 | 121011010021200 |
| 11 | 35615532451a82 |
| 12 | 116a48b24b4240 |
| 13 | 526a39b71b250 |
| 14 | 21c4d6d834d0c |
| 15 | decb9278a550 |
| hex | 6e0f12442750 |
121011010021200 has 240 divisors, whose sum is σ = 417512676603456. Its totient is φ = 29783349657600.
The previous prime is 121011010021199. The next prime is 121011010021201. The reversal of 121011010021200 is 2120010110121.
It is an interprime number because it is at equal distance from previous prime (121011010021199) and next prime (121011010021201).
It is a tau number, because it is divible by the number of its divisors (240).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121011010021201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117219280 + ... + 118247120.
Almost surely, 2121011010021200 is an apocalyptic number.
121011010021200 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 121011010021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208756338301728).
121011010021200 is an abundant number, since it is smaller than the sum of its proper divisors (296501666582256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121011010021200 is a wasteful number, since it uses less digits than its factorization.
121011010021200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1035422 (or 1035411 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 121011010021200 its reverse (2120010110121), we get a palindrome (123131020131321).
The spelling of 121011010021200 in words is "one hundred twenty-one trillion, eleven billion, ten million, twenty-one thousand, two hundred".
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