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222210011201020 = 225711097142648973
BaseRepresentation
bin110010100001100101001100…
…110010000111110111111100
31002010210001212202001210201121
4302201211030302013313330
5213111142100331413040
62104333511521320324
764543100140524463
oct6241451462076774
91063701782053647
10222210011201020
1164891811357917
1220b099571960a4
1396cb411235a1b
143cc304424d9da
151aa52d41e8c4a
hexca194cc87dfc

222210011201020 has 48 divisors (see below), whose sum is σ = 473644806118848. Its totient is φ = 87552233054720.

The previous prime is 222210011201011. The next prime is 222210011201027. The reversal of 222210011201020 is 20102110012222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222210011200985 and 222210011201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210011201027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69766747 + ... + 72882226.

It is an arithmetic number, because the mean of its divisors is an integer number (9867600127476).

Almost surely, 2222210011201020 is an apocalyptic number.

222210011201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222210011201020 is an abundant number, since it is smaller than the sum of its proper divisors (251434794917828).

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

222210011201020 is a wasteful number, since it uses less digits than its factorization.

222210011201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142650150 (or 142650148 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222210011201020 its reverse (20102110012222), we get a palindrome (242312121213242).

The spelling of 222210011201020 in words is "two hundred twenty-two trillion, two hundred ten billion, eleven million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1097 1420 2194 4388 5485 10970 21940 77887 155774 311548 389435 778870 1557740 142648973 285297946 570595892 713244865 1426489730 2852979460 10128077083 20256154166 40512308332 50640385415 101280770830 156485923381 202561541660 312971846762 625943693524 782429616905 1564859233810 3129718467620 11110500560051 22221001120102 44442002240204 55552502800255 111105005600510 222210011201020