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222010020020 = 22511100501001
BaseRepresentation
bin1100111011000011010…
…1000001000010110100
3210020001021000112212002
43032300311001002310
512114134031120040
6245553501114432
722016421014405
oct3166065010264
9706037015762
10222010020020
1186176960a98
123703a858a18
1317c2126bb69
14aa6130d9ac
155b958d1a15
hex33b0d410b4

222010020020 has 12 divisors (see below), whose sum is σ = 466221042084. Its totient is φ = 88804008000.

The previous prime is 222010020013. The next prime is 222010020097. The reversal of 222010020020 is 20020010222.

It can be written as a sum of positive squares in 2 ways, for example, as 103451003044 + 118559016976 = 321638^2 + 344324^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222010019983 and 222010020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550250481 + ... + 5550250520.

It is an arithmetic number, because the mean of its divisors is an integer number (38851753507).

Almost surely, 2222010020020 is an apocalyptic number.

222010020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222010020020 is an abundant number, since it is smaller than the sum of its proper divisors (244211022064).

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

222010020020 is a wasteful number, since it uses less digits than its factorization.

222010020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100501010 (or 11100501008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 222010020020 its reverse (20020010222), we get a palindrome (242030030242).

The spelling of 222010020020 in words is "two hundred twenty-two billion, ten million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 11100501001 22201002002 44402004004 55502505005 111005010010 222010020020