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BaseRepresentation
bin1001001001010101111010…
…01000011111100010001100
32122012201010111101010010010
410210222331020133202030
510114004301230000022
6110435231031513220
74144026212211024
oct444527510374214
978181114333103
1020112210000012
1164545a4247939
122309a6a528810
13b2b75b603b50
144d7616b62a84
1524d270ec350c
hex124abd21f88c

20112210000012 has 192 divisors, whose sum is σ = 52866076354560. Its totient is φ = 5904697430016.

The previous prime is 20112209999977. The next prime is 20112210000061. The reversal of 20112210000012 is 21000001221102.

Adding to 20112210000012 its reverse (21000001221102), we get a palindrome (41112211221114).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 2689873218 + ... + 2689880694.

It is an arithmetic number, because the mean of its divisors is an integer number (275344147680).

Almost surely, 220112210000012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112210000012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26433038177280).

20112210000012 is an abundant number, since it is smaller than the sum of its proper divisors (32753866354548).

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

20112210000012 is a wasteful number, since it uses less digits than its factorization.

20112210000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272 (or 9270 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The spelling of 20112210000012 in words is "twenty trillion, one hundred twelve billion, two hundred ten million, twelve", and thus it is an aban number.