121012122212220 has 96 divisors (see below), whose sum is σ = 341102742926400. Its totient is φ = 32054534959104.

The previous prime is 121012122212147. The next prime is 121012122212237. The reversal of 121012122212220 is 22212221210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5684935 + ... + 16563294.

It is an arithmetic number, because the mean of its divisors is an integer number (3553153572150).

Almost surely, 2^{121012122212220} is an apocalyptic number.

121012122212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012122212220 is an abundant number, since it is smaller than the sum of its proper divisors (220090620714180).

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

121012122212220 is a wasteful number, since it uses less digits than its factorization.

121012122212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22248847 (or 22248845 counting only the distinct ones).

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

Adding to 121012122212220 its reverse (22212221210121), we get a palindrome (143224343422341).

The spelling of 121012122212220 in words is "one hundred twenty-one trillion, twelve billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty".