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10210112220 = 223571110121881
BaseRepresentation
bin10011000001001000…
…11111001011011100
3222100120010102220110
421200210133023130
5131402242042340
64405050050020
7511005344010
oct114044371334
928316112813
1010210112220
11436a384480
121b8b419910
13c693a5429
146cc018540
153eb563680
hex26091f2dc

10210112220 has 192 divisors, whose sum is σ = 35997115392. Its totient is φ = 2100480000.

The previous prime is 10210112203. The next prime is 10210112243. The reversal of 10210112220 is 2221101201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10210112196 and 10210112205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 455680 + ... + 477560.

It is an arithmetic number, because the mean of its divisors is an integer number (187484976).

Almost surely, 210210112220 is an apocalyptic number.

10210112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10210112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17998557696).

10210112220 is an abundant number, since it is smaller than the sum of its proper divisors (25787003172).

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

10210112220 is a wasteful number, since it uses less digits than its factorization.

10210112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22012 (or 22010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10210112220 its reverse (2221101201), we get a palindrome (12431213421).

The spelling of 10210112220 in words is "ten billion, two hundred ten million, one hundred twelve thousand, two hundred twenty".