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2102200100000 = 25557111321001
BaseRepresentation
bin11110100101110100111…
…000111110010010100000
321102222010221100212000222
4132211310320332102200
5233420301211200000
64245423135502212
7304610323010210
oct36456470762240
97388127325028
102102200100000
117405a1174650
1229b506687968
1312330cb0bb20
1473a65bb6240
1539a3a453a85
hex1e974e3e4a0

2102200100000 has 576 divisors, whose sum is σ = 6945966929664. Its totient is φ = 604800000000.

The previous prime is 2102200099943. The next prime is 2102200100047. The reversal of 2102200100000 is 10022012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100089500 + ... + 100110500.

It is an arithmetic number, because the mean of its divisors is an integer number (12058970364).

Almost surely, 22102200100000 is an apocalyptic number.

2102200100000 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 2102200100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3472983464832).

2102200100000 is an abundant number, since it is smaller than the sum of its proper divisors (4843766829664).

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

2102200100000 is a wasteful number, since it uses less digits than its factorization.

2102200100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067 (or 21039 counting only the distinct ones).

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

Adding to 2102200100000 its reverse (10022012), we get a palindrome (2102210122012).

The spelling of 2102200100000 in words is "two trillion, one hundred two billion, two hundred million, one hundred thousand".