120221202121212 has 48 divisors (see below), whose sum is σ = 281001953675520. Its totient is φ = 40004354884992.

The previous prime is 120221202121201. The next prime is 120221202121219. The reversal of 120221202121212 is 212121202122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221202121219) 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 15 ways as a sum of consecutive naturals, for example, 40387464 + ... + 43261872.

It is an arithmetic number, because the mean of its divisors is an integer number (5854207368240).

Almost surely, 2^{120221202121212} is an apocalyptic number.

120221202121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120221202121212 is an abundant number, since it is smaller than the sum of its proper divisors (160780751554308).

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

120221202121212 is a wasteful number, since it uses less digits than its factorization.

120221202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880450 (or 2880448 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 120221202121212 its reverse (212121202122021), we get a palindrome (332342404243233).

The spelling of 120221202121212 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".