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22120330220 = 2257914000209
BaseRepresentation
bin10100100110011110…
…010111001111101100
32010002121022012111122
4110212132113033230
5330300301031340
614054551240112
71412106463442
oct244636271754
963077265448
1022120330220
11942139354a
124354079038
132116a632c1
1410dbb44b92
15896e9bdb5
hex5267973ec

22120330220 has 24 divisors (see below), whose sum is σ = 47040705600. Its totient is φ = 8736129792.

The previous prime is 22120330187. The next prime is 22120330277. The reversal of 22120330220 is 2203302122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6998525 + ... + 7001684.

It is an arithmetic number, because the mean of its divisors is an integer number (1960029400).

Almost surely, 222120330220 is an apocalyptic number.

22120330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120330220 is an abundant number, since it is smaller than the sum of its proper divisors (24920375380).

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

22120330220 is a wasteful number, since it uses less digits than its factorization.

22120330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14000297 (or 14000295 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22120330220 its reverse (2203302122), we get a palindrome (24323632342).

The spelling of 22120330220 in words is "twenty-two billion, one hundred twenty million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 14000209 28000418 56000836 70001045 140002090 280004180 1106016511 2212033022 4424066044 5530082555 11060165110 22120330220