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210011112012220 = 22529362088124159
BaseRepresentation
bin101111110000000100000101…
…101110101111100110111100
31000112120212101111002000111221
4233300010011232233212330
5210011310224133342340
62022353434543323124
762143542063350161
oct5760040556574674
91015525344060457
10210011112012220
1160a09237830642
121b6796885b04a4
139024c695ccc5c
1439c0840860068
151942d0e7ea44a
hexbf0105baf9bc

210011112012220 has 24 divisors (see below), whose sum is σ = 456231036441600. Its totient is φ = 81107739811392.

The previous prime is 210011112012217. The next prime is 210011112012227. The reversal of 210011112012220 is 22210211110012.

It is a junction number, because it is equal to n+sod(n) for n = 210011112012194 and 210011112012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011112012227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181044061500 + ... + 181044062659.

It is an arithmetic number, because the mean of its divisors is an integer number (19009626518400).

Almost surely, 2210011112012220 is an apocalyptic number.

210011112012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210011112012220 is an abundant number, since it is smaller than the sum of its proper divisors (246219924429380).

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

210011112012220 is a wasteful number, since it uses less digits than its factorization.

210011112012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362088124197 (or 362088124195 counting only the distinct ones).

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

Adding to 210011112012220 its reverse (22210211110012), we get a palindrome (232221323122232).

The spelling of 210011112012220 in words is "two hundred ten trillion, eleven billion, one hundred twelve million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 362088124159 724176248318 1448352496636 1810440620795 3620881241590 7241762483180 10500555600611 21001111201222 42002222402444 52502778003055 105005556006110 210011112012220