Search a number
-
+
2220201222 = 232831307539
BaseRepresentation
bin1000010001010101…
…1001010100000110
312201201200220111220
42010111121110012
514021332414342
61004150341210
7106006253601
oct20425312406
95651626456
102220201222
11a3a278048
1251b65a806
13294c85545
14170c19338
15cedac5ec
hex84559506

2220201222 has 16 divisors (see below), whose sum is σ = 4456096320. Its totient is φ = 737451432.

The previous prime is 2220201187. The next prime is 2220201223. The reversal of 2220201222 is 2221020222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220201223) 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, 652072 + ... + 655467.

It is an arithmetic number, because the mean of its divisors is an integer number (278506020).

Almost surely, 22220201222 is an apocalyptic number.

2220201222 is an abundant number, since it is smaller than the sum of its proper divisors (2235895098).

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

2220201222 is a wasteful number, since it uses less digits than its factorization.

2220201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307827.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2220201222 is about 47119.0112587266. The cubic root of 2220201222 is about 1304.5601629850.

Adding to 2220201222 its reverse (2221020222), we get a palindrome (4441221444).

The spelling of 2220201222 in words is "two billion, two hundred twenty million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 283 566 849 1698 1307539 2615078 3922617 7845234 370033537 740067074 1110100611 2220201222