Search a number
-
+
12121102002212 = 2271079940086721
BaseRepresentation
bin1011000001100010100111…
…1110101010100000100100
31120220202200102212020010122
42300120221332222200210
53042043004103032322
641440205110141112
72360502131030240
oct260305176524044
946822612766118
1012121102002212
1139535920a1555
121439198651798
1369c026ca9068
142dc943425420
1516046ea05442
hexb0629faa824

12121102002212 has 24 divisors (see below), whose sum is σ = 24244449465600. Its totient is φ = 5194276830720.

The previous prime is 12121102002199. The next prime is 12121102002239. The reversal of 12121102002212 is 21220020112121.

It is a super-2 number, since 2×121211020022122 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19740989 + ... + 20345732.

It is an arithmetic number, because the mean of its divisors is an integer number (1010185394400).

Almost surely, 212121102002212 is an apocalyptic number.

It is an amenable number.

12121102002212 is an abundant number, since it is smaller than the sum of its proper divisors (12123347463388).

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

12121102002212 is a wasteful number, since it uses less digits than its factorization.

12121102002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40097531 (or 40097529 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121102002212 its reverse (21220020112121), we get a palindrome (33341122114333).

The spelling of 12121102002212 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 10799 21598 43196 75593 151186 302372 40086721 80173442 160346884 280607047 561214094 1122428188 432896500079 865793000158 1731586000316 3030275500553 6060551001106 12121102002212