121003020112208 has 80 divisors (see below), whose sum is σ = 253637783642880. Its totient is φ = 55591030397952.

The previous prime is 121003020112207. The next prime is 121003020112223. The reversal of 121003020112208 is 802211020300121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003020112207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160475885 + ... + 161228147.

It is an arithmetic number, because the mean of its divisors is an integer number (3170472295536).

Almost surely, 2^{121003020112208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121003020112208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126818891821440).

121003020112208 is an abundant number, since it is smaller than the sum of its proper divisors (132634763530672).

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

121003020112208 is a wasteful number, since it uses less digits than its factorization.

121003020112208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755836 (or 755830 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 121003020112208 its reverse (802211020300121), we get a palindrome (923214040412329).

The spelling of 121003020112208 in words is "one hundred twenty-one trillion, three billion, twenty million, one hundred twelve thousand, two hundred eight".