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20102202011200 = 265253271874739
BaseRepresentation
bin1001001001000011010001…
…00111000010111001000000
32122011202022000120121101211
410210201220213002321000
510113323302203324300
6110430454001535504
74143223206544051
oct444415047027100
978152260517354
1020102202011200
116450328a76801
122307b36944594
13b2a82507a38a
144d6d47920728
1524cd875884ba
hex1248689c2e40

20102202011200 has 168 divisors, whose sum is σ = 50583289069440. Its totient is φ = 7860045772800.

The previous prime is 20102202011083. The next prime is 20102202011201. The reversal of 20102202011200 is 211020220102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20102202011201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22543431 + ... + 23418169.

Almost surely, 220102202011200 is an apocalyptic number.

20102202011200 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 20102202011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25291644534720).

20102202011200 is an abundant number, since it is smaller than the sum of its proper divisors (30481087058240).

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

20102202011200 is a wasteful number, since it uses less digits than its factorization.

20102202011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875085 (or 875070 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102202011200 its reverse (211020220102), we get a palindrome (20313222231302).

The spelling of 20102202011200 in words is "twenty trillion, one hundred two billion, two hundred two million, eleven thousand, two hundred".