Search a number
-
+
122320321212 = 22367152139703
BaseRepresentation
bin111000111101011011…
…0111111101010111100
3102200201201021010211010
41301322312333222330
54001003000234322
6132105420555220
711560132401165
oct1617266775274
9380651233733
10122320321212
114796a6a5861
121b8589b2b10
13b6c4b25bbb
145cc558476c
1532ada3d20c
hex1c7adbfabc

122320321212 has 24 divisors (see below), whose sum is σ = 289673996416. Its totient is φ = 40164881328.

The previous prime is 122320321177. The next prime is 122320321213. The reversal of 122320321212 is 212123023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122320321213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76069048 + ... + 76070655.

Almost surely, 2122320321212 is an apocalyptic number.

122320321212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122320321212 is an abundant number, since it is smaller than the sum of its proper divisors (167353675204).

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

122320321212 is a wasteful number, since it uses less digits than its factorization.

122320321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152139777 (or 152139775 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122320321212 its reverse (212123023221), we get a palindrome (334443344433).

The spelling of 122320321212 in words is "one hundred twenty-two billion, three hundred twenty million, three hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 152139703 304279406 456419109 608558812 912838218 1825676436 10193360101 20386720202 30580080303 40773440404 61160160606 122320321212