221130121312300 has 36 divisors (see below), whose sum is σ = 479890022166576. Its totient is φ = 88445106788800.

The previous prime is 221130121312277. The next prime is 221130121312339. The reversal of 221130121312300 is 3213121031122.

221130121312300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85491031 + ... + 88039630.

It is an arithmetic number, because the mean of its divisors is an integer number (13330278393516).

Almost surely, 2^{221130121312300} is an apocalyptic number.

221130121312300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221130121312300 is an abundant number, since it is smaller than the sum of its proper divisors (258759900854276).

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

221130121312300 is a wasteful number, since it uses less digits than its factorization.

221130121312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173543418 (or 173543411 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 221130121312300 its reverse (3213121031122), we get a palindrome (224343242343422).

The spelling of 221130121312300 in words is "two hundred twenty-one trillion, one hundred thirty billion, one hundred twenty-one million, three hundred twelve thousand, three hundred".