121333310323220 has 24 divisors (see below), whose sum is σ = 254800691421864. Its totient is φ = 48533183225856.

The previous prime is 121333310323213. The next prime is 121333310323229. The reversal of 121333310323220 is 22323013333121.

It can be written as a sum of positive squares in 4 ways, for example, as 6765315444484 + 114567994878736 = 2601022^2 + 10703644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333310323229) 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, 1601597 + ... + 15659876.

It is an arithmetic number, because the mean of its divisors is an integer number (10616695475911).

Almost surely, 2^{121333310323220} is an apocalyptic number.

121333310323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121333310323220 is an abundant number, since it is smaller than the sum of its proper divisors (133467381098644).

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

121333310323220 is a wasteful number, since it uses less digits than its factorization.

121333310323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17612939 (or 17612937 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 121333310323220 its reverse (22323013333121), we get a palindrome (143656323656341).

The spelling of 121333310323220 in words is "one hundred twenty-one trillion, three hundred thirty-three billion, three hundred ten million, three hundred twenty-three thousand, two hundred twenty".