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20102202100000 = 25551732115507
BaseRepresentation
bin1001001001000011010001…
…00111011000100100100000
32122011202022000202010012201
410210201220213120210200
510113323302214200000
6110430454003502544
74143223210363666
oct444415047304440
978152260663181
1020102202100000
116450329027499
122307b36987a54
13b2a8250ab917
144d6d47944c36
1524cd875a496a
hex1248689d8920

20102202100000 has 288 divisors, whose sum is σ = 49997907554112. Its totient is φ = 7955068800000.

The previous prime is 20102202099997. The next prime is 20102202100033. The reversal of 20102202100000 is 120220102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 20102202100000.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3650297247 + ... + 3650302753.

It is an arithmetic number, because the mean of its divisors is an integer number (173603845674).

Almost surely, 220102202100000 is an apocalyptic number.

20102202100000 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 20102202100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24998953777056).

20102202100000 is an abundant number, since it is smaller than the sum of its proper divisors (29895705454112).

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

20102202100000 is an equidigital number, since it uses as much as digits as its factorization.

20102202100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20102202100000 its reverse (120220102), we get a palindrome (20102322320102).

The spelling of 20102202100000 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred thousand".