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220220011120020 = 223520523717883391
BaseRepresentation
bin110010000100100111110111…
…100010010000010110010100
31001212201211100012211110202220
4302010213313202100112110
5212331041040321320040
62100211402041302340
764246241112113262
oct6204476742202624
91055654305743686
10220220011120020
11641948671761aa
12208481441949b0
1395b5872660cb2
143c549c3901432
151a6d6640b02d0
hexc849f7890594

220220011120020 has 48 divisors (see below), whose sum is σ = 616619070025728. Its totient is φ = 58725046880640.

The previous prime is 220220011119989. The next prime is 220220011120099. The reversal of 220220011120020 is 20021110022022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3372525 + ... + 21255915.

It is an arithmetic number, because the mean of its divisors is an integer number (12846230625536).

Almost surely, 2220220011120020 is an apocalyptic number.

220220011120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220011120020 is an abundant number, since it is smaller than the sum of its proper divisors (396399058905708).

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

220220011120020 is a wasteful number, since it uses less digits than its factorization.

220220011120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18088640 (or 18088638 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220220011120020 its reverse (20021110022022), we get a palindrome (240241121142042).

The spelling of 220220011120020 in words is "two hundred twenty trillion, two hundred twenty billion, eleven million, one hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 205237 410474 615711 820948 1026185 1231422 2052370 2462844 3078555 4104740 6157110 12314220 17883391 35766782 53650173 71533564 89416955 107300346 178833910 214600692 268250865 357667820 536501730 1073003460 3670333518667 7340667037334 11011000556001 14681334074668 18351667593335 22022001112002 36703335186670 44044002224004 55055002780005 73406670373340 110110005560010 220220011120020