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10201121112220 = 225578398818549
BaseRepresentation
bin1001010001110010001000…
…1100110100000010011100
31100010012212200002100011121
42110130202030310002130
52314113344001042340
633410155204300324
72102002201525123
oct224344214640234
940105780070147
1010201121112220
1132832a8a1a445
1211890669a16a4
1358cc6680aabc
14273a46086aba
1512a54ba1d94a
hex9472233409c

10201121112220 has 24 divisors (see below), whose sum is σ = 21422727144000. Its totient is φ = 4080377433792.

The previous prime is 10201121112181. The next prime is 10201121112271. The reversal of 10201121112220 is 2221112110201.

It is a junction number, because it is equal to n+sod(n) for n = 10201121112194 and 10201121112203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3252495 + ... + 5566054.

It is an arithmetic number, because the mean of its divisors is an integer number (892613631000).

Almost surely, 210201121112220 is an apocalyptic number.

10201121112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201121112220 is an abundant number, since it is smaller than the sum of its proper divisors (11221606031780).

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

10201121112220 is a wasteful number, since it uses less digits than its factorization.

10201121112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876397 (or 8876395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10201121112220 its reverse (2221112110201), we get a palindrome (12422233222421).

The spelling of 10201121112220 in words is "ten trillion, two hundred one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 57839 115678 231356 289195 578390 1156780 8818549 17637098 35274196 44092745 88185490 176370980 510056055611 1020112111222 2040224222444 2550280278055 5100560556110 10201121112220