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2210020100000 = 2555113257761
BaseRepresentation
bin100000001010001111011…
…101101000011110100000
321211021110002201100121022
4200022033131220132200
5242202110121200000
64411134052345012
7315445233620426
oct40121735503640
97737402640538
102210020100000
1178229a805469
122b8397315168
1313053378a7ab
1478d73647116
153c74ae80585
hex2028f7687a0

2210020100000 has 288 divisors, whose sum is σ = 5515086355632. Its totient is φ = 871628800000.

The previous prime is 2210020099909. The next prime is 2210020100003. The reversal of 2210020100000 is 10200122.

It can be written as a sum of positive squares in 24 ways, for example, as 2199894105616 + 10125994384 = 1483204^2 + 100628^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (2210020100003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2904099620 + ... + 2904100380.

Almost surely, 22210020100000 is an apocalyptic number.

2210020100000 is a gapful number since it is divisible by the number (20) 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 2210020100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2757543177816).

2210020100000 is an abundant number, since it is smaller than the sum of its proper divisors (3305066255632).

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

2210020100000 is an equidigital number, since it uses as much as digits as its factorization.

2210020100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 2210020100000 its reverse (10200122), we get a palindrome (2210030300122).

The spelling of 2210020100000 in words is "two trillion, two hundred ten billion, twenty million, one hundred thousand".