Search a number
-
+
1222220222 = 2797766763
BaseRepresentation
bin100100011011001…
…1001100110111110
310011011211012221122
41020312121212332
510000342021342
6321140230542
742200462156
oct11066314676
93134735848
101222220222
11577a03163
122a139b452
131662a4342
14b8475766
15724794d2
hex48d999be

1222220222 has 8 divisors (see below), whose sum is σ = 1835633016. Its totient is φ = 610342552.

The previous prime is 1222220183. The next prime is 1222220249. The reversal of 1222220222 is 2220222221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1222220222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381788 + ... + 384975.

It is an arithmetic number, because the mean of its divisors is an integer number (229454127).

Almost surely, 21222220222 is an apocalyptic number.

1222220222 is a deficient number, since it is larger than the sum of its proper divisors (613412794).

1222220222 is an equidigital number, since it uses as much as digits as its factorization.

1222220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767562.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1222220222 is about 34960.2663319375. The cubic root of 1222220222 is about 1069.1775267454.

Adding to 1222220222 its reverse (2220222221), we get a palindrome (3442442443).

The spelling of 1222220222 in words is "one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 797 1594 766763 1533526 611110111 1222220222