121233101313220 has 48 divisors (see below), whose sum is σ = 274344573667248. Its totient is φ = 44735031705600.

The previous prime is 121233101313179. The next prime is 121233101313223. The reversal of 121233101313220 is 22313101332121.

It can be written as a sum of positive squares in 8 ways, for example, as 7348859530884 + 113884241782336 = 2710878^2 + 10671656^2 .

It is not an unprimeable number, because it can be changed into a prime (121233101313223) 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, 145205589 + ... + 146038108.

It is an arithmetic number, because the mean of its divisors is an integer number (5715511951401).

Almost surely, 2^{121233101313220} is an apocalyptic number.

121233101313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233101313220 is an abundant number, since it is smaller than the sum of its proper divisors (153111472354028).

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

121233101313220 is a wasteful number, since it uses less digits than its factorization.

121233101313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291245320 (or 291245318 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121233101313220 its reverse (22313101332121), we get a palindrome (143546202645341).

The spelling of 121233101313220 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, one hundred one million, three hundred thirteen thousand, two hundred twenty".