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1020110212220 = 225119674795103
BaseRepresentation
bin11101101100000110100…
…11101000110001111100
310121112002020100001110212
432312003103220301330
5113203141203242340
62100344314051552
7133462165510241
oct16660323506174
93545066301425
101020110212220
11363698690aa0
12145854a19bb8
13752717512b8
143753321b5c8
151b807002a65
hexed834e8c7c

1020110212220 has 48 divisors (see below), whose sum is σ = 2339396978688. Its totient is φ = 370565482560.

The previous prime is 1020110212217. The next prime is 1020110212243. The reversal of 1020110212220 is 222120110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020110212195 and 1020110212204.

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, 2184812 + ... + 2610291.

It is an arithmetic number, because the mean of its divisors is an integer number (48737437056).

Almost surely, 21020110212220 is an apocalyptic number.

1020110212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020110212220 is an abundant number, since it is smaller than the sum of its proper divisors (1319286766468).

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

1020110212220 is a wasteful number, since it uses less digits than its factorization.

1020110212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796090 (or 4796088 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020110212220 its reverse (222120110201), we get a palindrome (1242230322421).

The spelling of 1020110212220 in words is "one trillion, twenty billion, one hundred ten million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 967 1934 3868 4835 9670 10637 19340 21274 42548 53185 106370 212740 4795103 9590206 19180412 23975515 47951030 52746133 95902060 105492266 210984532 263730665 527461330 1054922660 4636864601 9273729202 18547458404 23184323005 46368646010 51005510611 92737292020 102011021222 204022042444 255027553055 510055106110 1020110212220