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21210110201000 = 2353741599123377
BaseRepresentation
bin1001101001010010111010…
…00101011000110010101000
32210002200000001022001010002
410310221131011120302220
510240001301202413000
6113035442355242132
74316244206016410
oct464513505306250
983080001261102
1021210110201000
116838180297846
1224667b2ba9348
13bab1493618a6
145348093d3640
1526bacc44b8d5
hex134a5d158ca8

21210110201000 has 256 divisors, whose sum is σ = 58202831232000. Its totient is φ = 7082769408000.

The previous prime is 21210110200997. The next prime is 21210110201099. The reversal of 21210110201000 is 10201101212.

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, 171851312 + ... + 171974688.

It is an arithmetic number, because the mean of its divisors is an integer number (227354809500).

Almost surely, 221210110201000 is an apocalyptic number.

21210110201000 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 21210110201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29101415616000).

21210110201000 is an abundant number, since it is smaller than the sum of its proper divisors (36992721031000).

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

21210110201000 is a wasteful number, since it uses less digits than its factorization.

21210110201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124045 (or 124031 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21210110201000 its reverse (10201101212), we get a palindrome (21220311302212).

The spelling of 21210110201000 in words is "twenty-one trillion, two hundred ten billion, one hundred ten million, two hundred one thousand".