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1202201020220 = 225280134636197
BaseRepresentation
bin10001011111101000110…
…000111100011100111100
311020221002110022112002212
4101133220300330130330
5124144101430121340
62320141124035552
7152566443031424
oct21375060743474
94227073275085
101202201020220
1142393a153172
12174bb2832bb8
13894a05b5835
144228898d484
1521413059a65
hex117e8c3c73c

1202201020220 has 48 divisors (see below), whose sum is σ = 2526660416448. Its totient is φ = 480492364800.

The previous prime is 1202201020219. The next prime is 1202201020259. The reversal of 1202201020220 is 220201022021.

It is a junction number, because it is equal to n+sod(n) for n = 1202201020195 and 1202201020204.

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, 193994162 + ... + 194000358.

It is an arithmetic number, because the mean of its divisors is an integer number (52638758676).

Almost surely, 21202201020220 is an apocalyptic number.

1202201020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202201020220 is an abundant number, since it is smaller than the sum of its proper divisors (1324459396228).

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

1202201020220 is a wasteful number, since it uses less digits than its factorization.

1202201020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470 (or 12468 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1202201020220 its reverse (220201022021), we get a palindrome (1422402042241).

The spelling of 1202201020220 in words is "one trillion, two hundred two billion, two hundred one million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2801 3463 5602 6197 6926 11204 12394 13852 14005 17315 24788 28010 30985 34630 56020 61970 69260 123940 9699863 17357797 19399726 21460211 34715594 38799452 42920422 48499315 69431188 85840844 86788985 96998630 107301055 173577970 193997260 214602110 347155940 429204220 60110051011 120220102022 240440204044 300550255055 601100510110 1202201020220