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121120102212 = 223371035726339
BaseRepresentation
bin111000011001101010…
…0100001011101000100
3102120122001211200212120
41300303110201131010
53441023221232322
6131350344045540
711515316611344
oct1606324413504
9376561750776
10121120102212
114740415a52a
121b582a638b0
13b563285b45
145c0ddd8d24
15323d4aca5c
hex1c33521744

121120102212 has 48 divisors (see below), whose sum is σ = 290290822080. Its totient is φ = 39276911232.

The previous prime is 121120102193. The next prime is 121120102217. The reversal of 121120102212 is 212201021121.

It is a junction number, because it is equal to n+sod(n) for n = 121120102191 and 121120102200.

It is not an unprimeable number, because it can be changed into a prime (121120102217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4585339 + ... + 4611677.

It is an arithmetic number, because the mean of its divisors is an integer number (6047725460).

Almost surely, 2121120102212 is an apocalyptic number.

121120102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121120102212 is an abundant number, since it is smaller than the sum of its proper divisors (169170719868).

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

121120102212 is a wasteful number, since it uses less digits than its factorization.

121120102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36740 (or 36738 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121120102212 its reverse (212201021121), we get a palindrome (333321123333).

The spelling of 121120102212 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 10357 20714 26339 31071 41428 52678 62142 79017 105356 124284 158034 316068 383209 766418 974543 1149627 1532836 1949086 2299254 2923629 3898172 4598508 5847258 11694516 272793023 545586046 818379069 1091172092 1636758138 3273516276 10093341851 20186683702 30280025553 40373367404 60560051106 121120102212