121020211222212 has 24 divisors (see below), whose sum is σ = 283592426304096. Its totient is φ = 40166937057088.

The previous prime is 121020211222189. The next prime is 121020211222219. The reversal of 121020211222212 is 212222112020121.

It is not an unprimeable number, because it can be changed into a prime (121020211222219) 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 7 ways as a sum of consecutive naturals, for example, 21641665878 + ... + 21641671469.

It is an arithmetic number, because the mean of its divisors is an integer number (11816351096004).

Almost surely, 2^{121020211222212} is an apocalyptic number.

121020211222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121020211222212 is an abundant number, since it is smaller than the sum of its proper divisors (162572215081884).

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

121020211222212 is a wasteful number, since it uses less digits than its factorization.

121020211222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43283337587 (or 43283337585 counting only the distinct ones).

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

Adding to 121020211222212 its reverse (212222112020121), we get a palindrome (333242323242333).

The spelling of 121020211222212 in words is "one hundred twenty-one trillion, twenty billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".