Search a number
-
+
121102010112 = 283157684909
BaseRepresentation
bin111000011001000111…
…1100000011100000000
3102120120210210112011210
41300302033200130000
53441004103310422
6131344500210120
711515010046606
oct1606217403400
9376523715153
10121102010112
11473a4a22686
121b578999940
13b55c5bcc65
145c0b849876
15323bad710c
hex1c323e0700

121102010112 has 36 divisors (see below), whose sum is σ = 322307956040. Its totient is φ = 40367336448.

The previous prime is 121102010077. The next prime is 121102010143. The reversal of 121102010112 is 211010201121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78841687 + ... + 78843222.

Almost surely, 2121102010112 is an apocalyptic number.

121102010112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121102010112 is an abundant number, since it is smaller than the sum of its proper divisors (201205945928).

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

121102010112 is an equidigital number, since it uses as much as digits as its factorization.

121102010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157684928 (or 157684914 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121102010112 its reverse (211010201121), we get a palindrome (332112211233).

The spelling of 121102010112 in words is "one hundred twenty-one billion, one hundred two million, ten thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 157684909 315369818 473054727 630739636 946109454 1261479272 1892218908 2522958544 3784437816 5045917088 7568875632 10091834176 15137751264 20183668352 30275502528 40367336704 60551005056 121102010112