Search a number
-
+
121102102330220 = 225117922950959779
BaseRepresentation
bin11011100010010001000111…
…110010100111101101101100
3120212210020200201202020120102
4123202101013302213231230
5111333114101144031340
61105321312054410232
734336223663342264
oct3342210762475554
9525706621666512
10121102102330220
1135650127704aa0
12116ba495060978
135275b5792a60b
1421c953182c7a4
15e0022497e215
hex6e2447ca7b6c

121102102330220 has 192 divisors, whose sum is σ = 282731662080000. Its totient is φ = 43204056929280.

The previous prime is 121102102330189. The next prime is 121102102330243. The reversal of 121102102330220 is 22033201201121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121102102330192 and 121102102330201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2025800291 + ... + 2025860069.

It is an arithmetic number, because the mean of its divisors is an integer number (1472560740000).

Almost surely, 2121102102330220 is an apocalyptic number.

121102102330220 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 121102102330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141365831040000).

121102102330220 is an abundant number, since it is smaller than the sum of its proper divisors (161629559749780).

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

121102102330220 is a wasteful number, since it uses less digits than its factorization.

121102102330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60616 (or 60614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121102102330220 its reverse (22033201201121), we get a palindrome (143135303531341).

The spelling of 121102102330220 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred two million, three hundred thirty thousand, two hundred twenty".