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222022120 = 2355550553
BaseRepresentation
bin11010011101111…
…00100111101000
3120110202220002111
431032330213220
5423314201440
634010412104
75334104545
oct1516744750
9513686074
10222022120
11104364561
1262431034
1336cc7c48
14216b5bcc
15147594ea
hexd3bc9e8

222022120 has 16 divisors (see below), whose sum is σ = 499549860. Its totient is φ = 88808832.

The previous prime is 222022103. The next prime is 222022147. The reversal of 222022120 is 21220222.

222022120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218389284 + 3632836 = 14778^2 + 1906^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222022120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775237 + ... + 2775316.

Almost surely, 2222022120 is an apocalyptic number.

222022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022120 is an abundant number, since it is smaller than the sum of its proper divisors (277527740).

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

222022120 is a wasteful number, since it uses less digits than its factorization.

222022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550564 (or 5550560 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222022120 is about 14900.4067058587. The cubic root of 222022120 is about 605.5250047464.

Adding to 222022120 its reverse (21220222), we get a palindrome (243242342).

The spelling of 222022120 in words is "two hundred twenty-two million, twenty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5550553 11101106 22202212 27752765 44404424 55505530 111011060 222022120