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222102102212020 = 22511105105110601
BaseRepresentation
bin110010100000000000101100…
…111001111111110110110100
31002010101202100101021012012101
4302200000230321333312310
5213102410101131241040
62104212144105231444
764532230066332142
oct6240005471776664
91063352311235171
10222102102212020
116484aa77566278
1220ab0a60792584
1396c11a4cca344
143cbbb28a56592
151aa25ba99009a
hexca002ce7fdb4

222102102212020 has 12 divisors (see below), whose sum is σ = 466414414645284. Its totient is φ = 88840840884800.

The previous prime is 222102102211963. The next prime is 222102102212027. The reversal of 222102102212020 is 20212201201222.

222102102212020 is digitally balanced in base 2, 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 98140644307216 + 123961457904804 = 9906596^2 + 11133798^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102102212027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552552555281 + ... + 5552552555320.

It is an arithmetic number, because the mean of its divisors is an integer number (38867867887107).

Almost surely, 2222102102212020 is an apocalyptic number.

222102102212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102102212020 is an abundant number, since it is smaller than the sum of its proper divisors (244312312433264).

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

222102102212020 is a wasteful number, since it uses less digits than its factorization.

222102102212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105105110610 (or 11105105110608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222102102212020 its reverse (20212201201222), we get a palindrome (242314303413242).

The spelling of 222102102212020 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 11105105110601 22210210221202 44420420442404 55525525553005 111051051106010 222102102212020