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222201201020 = 225291621236339
BaseRepresentation
bin1100111011110000111…
…0010100000101111100
3210020112120202112212212
43032330032110011330
512120032001413040
6250024450515552
722024232021411
oct3167416240574
9706476675785
10222201201020
1186264870117
1237092895bb8
1317c51a59006
14aa7c878108
155ba7597d65
hex33bc39417c

222201201020 has 48 divisors (see below), whose sum is σ = 483012784800. Its totient is φ = 85762333440.

The previous prime is 222201201017. The next prime is 222201201059. The reversal of 222201201020 is 20102102222.

It is a junction number, because it is equal to n+sod(n) for n = 222201200986 and 222201201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822011 + ... + 1058349.

It is an arithmetic number, because the mean of its divisors is an integer number (10062766350).

Almost surely, 2222201201020 is an apocalyptic number.

222201201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201201020 is an abundant number, since it is smaller than the sum of its proper divisors (260811583780).

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

222201201020 is a wasteful number, since it uses less digits than its factorization.

222201201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237998 (or 237996 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222201201020 its reverse (20102102222), we get a palindrome (242303303242).

The spelling of 222201201020 in words is "two hundred twenty-two billion, two hundred one million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 1621 3242 6484 8105 16210 32420 47009 94018 188036 235045 236339 470090 472678 940180 945356 1181695 2363390 4726780 6853831 13707662 27415324 34269155 68538310 137076620 383105519 766211038 1532422076 1915527595 3831055190 7662110380 11110060051 22220120102 44440240204 55550300255 111100600510 222201201020