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102221202202220 = 22513784053443851
BaseRepresentation
bin10111001111100000111010…
…011100100001111001101100
3111101221020210100010112102002
4113033200322130201321230
5101344243010230432340
61001223434430351432
730350144453301053
oct2717407234417154
9441836710115362
10102221202202220
112a63084a818532
12b56b1a195b578
134506558489a6a
141b357655ad39a
15bc401c2b0715
hex5cf83a721e6c

102221202202220 has 48 divisors (see below), whose sum is σ = 216234478702368. Its totient is φ = 40589450457600.

The previous prime is 102221202202153. The next prime is 102221202202243. The reversal of 102221202202220 is 22202202122201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102221202202192 and 102221202202201.

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, 230083295 + ... + 230527145.

It is an arithmetic number, because the mean of its divisors is an integer number (4504884972966).

Almost surely, 2102221202202220 is an apocalyptic number.

102221202202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221202202220 is an abundant number, since it is smaller than the sum of its proper divisors (114013276500148).

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

102221202202220 is a wasteful number, since it uses less digits than its factorization.

102221202202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528050 (or 528048 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102221202202220 its reverse (22202202122201), we get a palindrome (124423404324421).

The spelling of 102221202202220 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 84053 168106 336212 420265 443851 840530 887702 1681060 1775404 2219255 4438510 8877020 11515261 23030522 46061044 57576305 60807587 115152610 121615174 230305220 243230348 304037935 608075870 1216151740 37307008103 74614016206 149228032412 186535040515 373070081030 746140162060 5111060110111 10222120220222 20444240440444 25555300550555 51110601101110 102221202202220