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2222202021020 = 225695915966389
BaseRepresentation
bin100000010101100101100…
…011111110010010011100
321212102220002011001200022
4200111211203332102130
5242402032204133040
64420510541251312
7316356144343232
oct40254543762234
97772802131608
102222202021020
11787481120a93
122ba816b63b38
13131725519697
14797ab49c952
153cc106886b5
hex205658fe49c

2222202021020 has 24 divisors (see below), whose sum is σ = 4667295124800. Its totient is φ = 888753021632.

The previous prime is 2222202021019. The next prime is 2222202021029. The reversal of 2222202021020 is 201202022222.

It is a self number, because there is not a number n which added to its sum of digits gives 2222202021020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222202021029) 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, 7844015 + ... + 8122374.

It is an arithmetic number, because the mean of its divisors is an integer number (194470630200).

Almost surely, 22222202021020 is an apocalyptic number.

2222202021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222202021020 is an abundant number, since it is smaller than the sum of its proper divisors (2445093103780).

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

2222202021020 is a wasteful number, since it uses less digits than its factorization.

2222202021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15973357 (or 15973355 counting only the distinct ones).

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

Adding to 2222202021020 its reverse (201202022222), we get a palindrome (2423404043242).

The spelling of 2222202021020 in words is "two trillion, two hundred twenty-two billion, two hundred two million, twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 6959 13918 27836 34795 69590 139180 15966389 31932778 63865556 79831945 159663890 319327780 111110101051 222220202102 444440404204 555550505255 1111101010510 2222202021020