Search a number
-
+
122210201020 = 2257735978989
BaseRepresentation
bin111000111010001001…
…0111010110110111100
3102200110001001110022111
41301310102322312330
54000241302413040
6132050444423404
711554324366105
oct1616422726674
9380401043274
10122210201020
1147913521936
121b827b47b64
13b6a807ac1b
145cb4abb3ac
1532a4039dea
hex1c744badbc

122210201020 has 24 divisors (see below), whose sum is σ = 256647988800. Its totient is φ = 48882829632.

The previous prime is 122210200999. The next prime is 122210201077. The reversal of 122210201020 is 20102012221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507686 + ... + 1586674.

It is an arithmetic number, because the mean of its divisors is an integer number (10693666200).

Almost surely, 2122210201020 is an apocalyptic number.

122210201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122210201020 is an abundant number, since it is smaller than the sum of its proper divisors (134437787780).

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

122210201020 is a wasteful number, since it uses less digits than its factorization.

122210201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156357 (or 156355 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122210201020 its reverse (20102012221), we get a palindrome (142312213241).

The spelling of 122210201020 in words is "one hundred twenty-two billion, two hundred ten million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 77359 78989 154718 157978 309436 315956 386795 394945 773590 789890 1547180 1579780 6110510051 12221020102 24442040204 30552550255 61105100510 122210201020