| Base | Representation |
|---|---|
| bin | 111000010111000010… |
| … | …1010100010101001100 |
| 3 | 102120101221111100011100 |
| 4 | 1300232011110111030 |
| 5 | 3440333222331340 |
| 6 | 131333524423100 |
| 7 | 11513201660646 |
| oct | 1605605242514 |
| 9 | 376357440140 |
| 10 | 121032230220 |
| 11 | 473695a1a50 |
| 12 | 1b559547a90 |
| 13 | b54acca695 |
| 14 | 5c02483896 |
| 15 | 3235901830 |
| hex | 1c2e15454c |
121032230220 has 288 divisors, whose sum is σ = 436127328000. Its totient is φ = 26838120960.
The previous prime is 121032230101. The next prime is 121032230227. The reversal of 121032230220 is 22032230121.
121032230220 is a `hidden beast` number, since 1 + 21 + 0 + 322 + 302 + 20 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 121032230193 and 121032230202.
It is not an unprimeable number, because it can be changed into a prime (121032230227) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1035511 + ... + 1146449.
It is an arithmetic number, because the mean of its divisors is an integer number (1514331000).
Almost surely, 2121032230220 is an apocalyptic number.
121032230220 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 121032230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218063664000).
121032230220 is an abundant number, since it is smaller than the sum of its proper divisors (315095097780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121032230220 is a wasteful number, since it uses less digits than its factorization.
121032230220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111013 (or 111008 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 121032230220 its reverse (22032230121), we get a palindrome (143064460341).
Subtracting from 121032230220 its reverse (22032230121), we obtain a palindrome (99000000099).
The spelling of 121032230220 in words is "one hundred twenty-one billion, thirty-two million, two hundred thirty thousand, two hundred twenty".
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