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1202202102220 = 225721226736839
BaseRepresentation
bin10001011111101000110…
…101000100100111001100
311020221002112100111022221
4101133220311010213030
5124144102214232340
62320141203145124
7152566455156100
oct21375065044714
94227075314287
101202202102220
1142393a822089
12174bb30751a4
13894a08a4182
1442288b91900
15214131c044a
hex117e8d449cc

1202202102220 has 36 divisors (see below), whose sum is σ = 2936807994960. Its totient is φ = 412183577568.

The previous prime is 1202202102173. The next prime is 1202202102229. The reversal of 1202202102220 is 222012022021.

It is a junction number, because it is equal to n+sod(n) for n = 1202202102194 and 1202202102203.

It is not an unprimeable number, because it can be changed into a prime (1202202102229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613367440 + ... + 613369399.

It is an arithmetic number, because the mean of its divisors is an integer number (81577999860).

Almost surely, 21202202102220 is an apocalyptic number.

1202202102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202202102220 is an abundant number, since it is smaller than the sum of its proper divisors (1734605892740).

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

1202202102220 is a wasteful number, since it uses less digits than its factorization.

1202202102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226736862 (or 1226736853 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1202202102220 its reverse (222012022021), we get a palindrome (1424214124241).

The spelling of 1202202102220 in words is "one trillion, two hundred two billion, two hundred two million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 1226736839 2453473678 4906947356 6133684195 8587157873 12267368390 17174315746 24534736780 34348631492 42935789365 60110105111 85871578730 120220210222 171743157460 240440420444 300550525555 601101051110 1202202102220