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BaseRepresentation
bin10001100111000000110…
…010001110011110000000
311021200112100122122101220
4101213000302032132000
5124311311232431422
62323531015355040
7153266623000323
oct21470062163600
94250470578356
101210120202112
11427233340798
12176642982a80
138a163170093
14427da61a7ba
15217283dde5c
hex119c0c8e780

1210120202112 has 256 divisors, whose sum is σ = 3354565294080. Its totient is φ = 386089943040.

The previous prime is 1210120202029. The next prime is 1210120202119. The reversal of 1210120202112 is 2112020210121.

It is a junction number, because it is equal to n+sod(n) for n = 1210120202091 and 1210120202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210120202119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500669128 + ... + 500671544.

It is an arithmetic number, because the mean of its divisors is an integer number (13103770680).

Almost surely, 21210120202112 is an apocalyptic number.

1210120202112 is a gapful number since it is divisible by the number (12) 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 1210120202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677282647040).

1210120202112 is an abundant number, since it is smaller than the sum of its proper divisors (2144445091968).

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

1210120202112 is a wasteful number, since it uses less digits than its factorization.

1210120202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909 (or 2897 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1210120202112 its reverse (2112020210121), we get a palindrome (3322140412233).

The spelling of 1210120202112 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, one hundred twelve".