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20002222212020 = 2254283233507147
BaseRepresentation
bin1001000110001001000010…
…10110011000001110110100
32121211012020020221120110122
410203010201112120032310
510110204022341241040
6110312521035511112
74133053466352056
oct443044126301664
977735206846418
1020002222212020
116411992a888a4
1222b06938b8498
13b212807c15a9
144d218143b8d6
1524a484ede1b5
hex1231215983b4

20002222212020 has 24 divisors (see below), whose sum is σ = 42014474125344. Its totient is φ = 7999020793376.

The previous prime is 20002222211989. The next prime is 20002222212029. The reversal of 20002222212020 is 2021222220002.

It is a self number, because there is not a number n which added to its sum of digits gives 20002222212020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002222212029) 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, 116667914 + ... + 116839233.

It is an arithmetic number, because the mean of its divisors is an integer number (1750603088556).

Almost surely, 220002222212020 is an apocalyptic number.

20002222212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002222212020 is an abundant number, since it is smaller than the sum of its proper divisors (22012251913324).

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

20002222212020 is a wasteful number, since it uses less digits than its factorization.

20002222212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233511439 (or 233511437 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20002222212020 its reverse (2021222220002), we get a palindrome (22023444432022).

The spelling of 20002222212020 in words is "twenty trillion, two billion, two hundred twenty-two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 4283 8566 17132 21415 42830 85660 233507147 467014294 934028588 1167535735 2335071470 4670142940 1000111110601 2000222221202 4000444442404 5000555553005 10001111106010 20002222212020