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1112021110220 = 225199279402289
BaseRepresentation
bin10000001011101001100…
…111111000110111001100
310221022022122220102212012
4100023221213320313030
5121204404401011340
62210504435400352
7143224630323056
oct20135147706714
93838278812765
101112021110220
11399672a21029
1215b6257530b8
1380b2b421647
143bb71c1c8d6
151ddd5ee1565
hex102e99f8dcc

1112021110220 has 24 divisors (see below), whose sum is σ = 2346979236000. Its totient is φ = 442573224192.

The previous prime is 1112021110199. The next prime is 1112021110267. The reversal of 1112021110220 is 220111202111.

It is a junction number, because it is equal to n+sod(n) for n = 1112021110195 and 1112021110204.

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, 139697165 + ... + 139705124.

It is an arithmetic number, because the mean of its divisors is an integer number (97790801500).

Almost surely, 21112021110220 is an apocalyptic number.

1112021110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112021110220 is an abundant number, since it is smaller than the sum of its proper divisors (1234958125780).

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

1112021110220 is a wasteful number, since it uses less digits than its factorization.

1112021110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279402497 (or 279402495 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1112021110220 its reverse (220111202111), we get a palindrome (1332132312331).

The spelling of 1112021110220 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 199 398 796 995 1990 3980 279402289 558804578 1117609156 1397011445 2794022890 5588045780 55601055511 111202111022 222404222044 278005277555 556010555110 1112021110220