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22201022020 = 2251144397007
BaseRepresentation
bin10100101011010010…
…001011011001000100
32010022020010202211211
4110223102023121010
5330431430201040
614110552541204
71414106400502
oct245322133104
963266122754
1022201022020
119462997491
1243770b1804
13212a6a6528
14110874b672
1589e0da8ea
hex52b48b644

22201022020 has 24 divisors (see below), whose sum is σ = 46626701184. Its totient is φ = 8879541216.

The previous prime is 22201021967. The next prime is 22201022027. The reversal of 22201022020 is 2022010222.

It is not an unprimeable number, because it can be changed into a prime (22201022027) 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, 180357 + ... + 277363.

It is an arithmetic number, because the mean of its divisors is an integer number (1942779216).

Almost surely, 222201022020 is an apocalyptic number.

22201022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201022020 is an abundant number, since it is smaller than the sum of its proper divisors (24425679164).

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

22201022020 is a wasteful number, since it uses less digits than its factorization.

22201022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108459 (or 108457 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22201022020 its reverse (2022010222), we get a palindrome (24223032242).

The spelling of 22201022020 in words is "twenty-two billion, two hundred one million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 11443 22886 45772 57215 97007 114430 194014 228860 388028 485035 970070 1940140 1110051101 2220102202 4440204404 5550255505 11100511010 22201022020