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20222201112220 = 2253880992605289
BaseRepresentation
bin1001001100100010110010…
…00111010010011010011100
32122121020000222001112201201
410212101121013102122130
510122310031441042340
6111001541223045244
74155001665223402
oct446213107223234
978536028045651
1020222201112220
116497207377468
1223272462a0824
13b38c3a00b4b3
144dca8cab1472
1525105c41279a
hex1264591d269c

20222201112220 has 24 divisors (see below), whose sum is σ = 42466748058000. Its totient is φ = 8088856497792.

The previous prime is 20222201112167. The next prime is 20222201112229. The reversal of 20222201112220 is 2221110222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222201112229) 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, 6459336 + ... + 9064624.

It is an arithmetic number, because the mean of its divisors is an integer number (1769447835750).

Almost surely, 220222201112220 is an apocalyptic number.

20222201112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222201112220 is an abundant number, since it is smaller than the sum of its proper divisors (22244546945780).

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

20222201112220 is a wasteful number, since it uses less digits than its factorization.

20222201112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993397 (or 2993395 counting only the distinct ones).

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

Adding to 20222201112220 its reverse (2221110222202), we get a palindrome (22443311334422).

The spelling of 20222201112220 in words is "twenty trillion, two hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 388099 776198 1552396 1940495 2605289 3880990 5210578 7761980 10421156 13026445 26052890 52105780 1011110055611 2022220111222 4044440222444 5055550278055 10111100556110 20222201112220