121300011012220 has 24 divisors (see below), whose sum is σ = 255163975489584. Its totient is φ = 48437346811776.

The previous prime is 121300011012203. The next prime is 121300011012227. The reversal of 121300011012220 is 22210110003121.

It is a junction number, because it is equal to n+sod(n) for n = 121300011012194 and 121300011012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300011012227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5166087537 + ... + 5166111016.

It is an arithmetic number, because the mean of its divisors is an integer number (10631832312066).

Almost surely, 2^{121300011012220} is an apocalyptic number.

121300011012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300011012220 is an abundant number, since it is smaller than the sum of its proper divisors (133863964477364).

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

121300011012220 is a wasteful number, since it uses less digits than its factorization.

121300011012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332199149 (or 10332199147 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121300011012220 its reverse (22210110003121), we get a palindrome (143510121015341).

The spelling of 121300011012220 in words is "one hundred twenty-one trillion, three hundred billion, eleven million, twelve thousand, two hundred twenty".