Search a number
-
+
121311010332212 = 22129131323485981
BaseRepresentation
bin11011100101010011101011…
…101011011001111000110100
3120220112012220220000022112112
4123211103223223121320310
5111400024422121112322
61110001301522110152
734360300632143501
oct3345235353317064
9526465826008475
10121311010332212
113572078a840a08
1211732a77aab358
13528c76b62858c
1421d56aca184a8
15e0589eeab5e2
hex6e54ebad9e34

121311010332212 has 12 divisors (see below), whose sum is σ = 212294441522436. Its totient is φ = 60655455611520.

The previous prime is 121311010332181. The next prime is 121311010332289. The reversal of 121311010332212 is 212233010113121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85339276781476 + 35971733550736 = 9237926^2 + 5997644^2 .

It is a super-2 number, since 2×1213110103322122 (a number of 29 digits) contains 22 as substring.

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, 6577739 + ... + 16908242.

It is an arithmetic number, because the mean of its divisors is an integer number (17691203460203).

Almost surely, 2121311010332212 is an apocalyptic number.

It is an amenable number.

121311010332212 is a deficient number, since it is larger than the sum of its proper divisors (90983431190224).

121311010332212 is a wasteful number, since it uses less digits than its factorization.

121311010332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24777298 (or 24777296 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121311010332212 its reverse (212233010113121), we get a palindrome (333544020445333).

The spelling of 121311010332212 in words is "one hundred twenty-one trillion, three hundred eleven billion, ten million, three hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 1291313 2582626 5165252 23485981 46971962 93943924 30327752583053 60655505166106 121311010332212