120212121210020 has 192 divisors, whose sum is σ = 295720109045760. Its totient is φ = 40199705395200.

The previous prime is 120212121209993. The next prime is 120212121210073. The reversal of 120212121210020 is 20012121212021.

It is an unprimeable number.

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, 580292060 + ... + 580499180.

It is an arithmetic number, because the mean of its divisors is an integer number (1540208901280).

Almost surely, 2^{120212121210020} is an apocalyptic number.

120212121210020 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 120212121210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147860054522880).

120212121210020 is an abundant number, since it is smaller than the sum of its proper divisors (175507987835740).

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

120212121210020 is a wasteful number, since it uses less digits than its factorization.

120212121210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207854 (or 207852 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120212121210020 its reverse (20012121212021), we get a palindrome (140224242422041).

The spelling of 120212121210020 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, twenty".