1210200120120 has 256 divisors, whose sum is σ = 3992293578240. Its totient is φ = 292243488768.

The previous prime is 1210200120119. The next prime is 1210200120127. The reversal of 1210200120120 is 210210020121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1210200120096 and 1210200120105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210200120127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5774284 + ... + 5980196.

It is an arithmetic number, because the mean of its divisors is an integer number (15594896790).

Almost surely, 2^{1210200120120} is an apocalyptic number.

1210200120120 is a gapful number since it is divisible by the number (10) 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 1210200120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1996146789120).

1210200120120 is an abundant number, since it is smaller than the sum of its proper divisors (2782093458120).

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

1210200120120 is a wasteful number, since it uses less digits than its factorization.

1210200120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206054 (or 206050 counting only the distinct ones).

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

Adding to 1210200120120 its reverse (210210020121), we get a palindrome (1420410140241).

Subtracting from 1210200120120 its reverse (210210020121), we obtain a palindrome (999990099999).

It can be divided in two parts, 12102001 and 20120, that added together give a palindrome (12122121).

The spelling of 1210200120120 in words is "one trillion, two hundred ten billion, two hundred million, one hundred twenty thousand, one hundred twenty".