120221212120000 has 140 divisors (see below), whose sum is σ = 299622800169000. Its totient is φ = 47844377728000.

The previous prime is 120221212119997. The next prime is 120221212120001. The reversal of 120221212120000 is 21212122021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221212120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 251751 + ... + 15508249.

It is an arithmetic number, because the mean of its divisors is an integer number (2140162858350).

Almost surely, 2^{120221212120000} is an apocalyptic number.

120221212120000 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 120221212120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149811400084500).

120221212120000 is an abundant number, since it is smaller than the sum of its proper divisors (179401588049000).

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

120221212120000 is an equidigital number, since it uses as much as digits as its factorization.

120221212120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256728 (or 15256703 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120221212120000 its reverse (21212122021), we get a palindrome (120242424242021).

The spelling of 120221212120000 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty thousand".