Search a number
-
+
121212100332 = 223219612905093
BaseRepresentation
bin111000011100011001…
…1011101111011101100
3102120212110221200120100
41300320303131323230
53441220244202312
6131403431551100
711520514565421
oct1607063357354
9376773850510
10121212100332
1147451086034
121b5a982b490
13b5793573bb
145c1c305d48
1532465d15dc
hex1c38cddeec

121212100332 has 72 divisors (see below), whose sum is σ = 327810806960. Its totient is φ = 37649992320.

The previous prime is 121212100319. The next prime is 121212100357. The reversal of 121212100332 is 233001212121.

121212100332 is a `hidden beast` number, since 1 + 2 + 121 + 210 + 0 + 332 = 666.

121212100332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1410823 + ... + 1494270.

Almost surely, 2121212100332 is an apocalyptic number.

121212100332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121212100332 is an abundant number, since it is smaller than the sum of its proper divisors (206598706628).

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

121212100332 is a wasteful number, since it uses less digits than its factorization.

121212100332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905183 (or 2905178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121212100332 its reverse (233001212121), we get a palindrome (354213312453).

The spelling of 121212100332 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 61 76 114 122 171 183 228 244 342 366 549 684 732 1098 1159 2196 2318 3477 4636 6954 10431 13908 20862 41724 2905093 5810186 8715279 11620372 17430558 26145837 34861116 52291674 55196767 104583348 110393534 165590301 177210673 220787068 331180602 354421346 496770903 531632019 662361204 708842692 993541806 1063264038 1594896057 1987083612 2126528076 3189792114 3367002787 6379584228 6734005574 10101008361 13468011148 20202016722 30303025083 40404033444 60606050166 121212100332