Search a number
-
+
12222122101210 = 257267339370411
BaseRepresentation
bin1011000111011010111100…
…1111110000100111011010
31121021102102200222222010201
42301312233033300213122
53100221401224214320
641554433153332414
72401006402510300
oct261665717604732
947242380888121
1012222122101210
11399241132907a
12145488bb6710a
136a8705c42178
143037a7b46270
15162dd359170a
hexb1daf3f09da

12222122101210 has 48 divisors (see below), whose sum is σ = 25592076226080. Its totient is φ = 4190368321440.

The previous prime is 12222122101207. The next prime is 12222122101219. The reversal of 12222122101210 is 1210122122221.

It is not an unprimeable number, because it can be changed into a prime (12222122101219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32810905 + ... + 33181315.

It is an arithmetic number, because the mean of its divisors is an integer number (533168254710).

Almost surely, 212222122101210 is an apocalyptic number.

12222122101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222122101210 is an abundant number, since it is smaller than the sum of its proper divisors (13369954124870).

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

12222122101210 is a wasteful number, since it uses less digits than its factorization.

12222122101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437771 (or 437764 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222122101210 its reverse (1210122122221), we get a palindrome (13432244223431).

The spelling of 12222122101210 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred one thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 67339 134678 336695 370411 471373 673390 740822 942746 1852055 2356865 2592877 3299611 3704110 4713730 5185754 6599222 12964385 16498055 18150139 25928770 32996110 36300278 90750695 181501390 24943106329 49886212658 124715531645 174601744303 249431063290 349203488606 873008721515 1222212210121 1746017443030 2444424420242 6111061050605 12222122101210