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220222232220 = 22355436767511
BaseRepresentation
bin1100110100011001000…
…1001001011010011100
3210001102122222112001010
43031012101021122130
512102003342412340
6245100234415220
721624212042154
oct3150621113234
9701378875033
10220222232220
1185439788611
123681bb91510
13179c7a66563
14a931ad5764
155add98bb80
hex334644969c

220222232220 has 48 divisors (see below), whose sum is σ = 616642725888. Its totient is φ = 58723978560.

The previous prime is 220222232171. The next prime is 220222232231. The reversal of 220222232220 is 22232222022.

220222232220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2202222322202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228265 + ... + 3295775.

It is an arithmetic number, because the mean of its divisors is an integer number (12846723456).

Almost surely, 2220222232220 is an apocalyptic number.

220222232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220222232220 is an abundant number, since it is smaller than the sum of its proper divisors (396420493668).

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

220222232220 is a wasteful number, since it uses less digits than its factorization.

220222232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121890 (or 121888 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 220222232220 its reverse (22232222022), we get a palindrome (242454454242).

The spelling of 220222232220 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 54367 67511 108734 135022 163101 202533 217468 270044 271835 326202 337555 405066 543670 652404 675110 810132 815505 1012665 1087340 1350220 1631010 2025330 3262020 4050660 3670370537 7340741074 11011111611 14681482148 18351852685 22022223222 36703705370 44044446444 55055558055 73407410740 110111116110 220222232220