121220330133 has 8 divisors (see below), whose sum is σ = 184716693568. Its totient is φ = 69268760064.

The previous prime is 121220330123. The next prime is 121220330149. The reversal of 121220330133 is 331033022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121220330133 - 2⁴ = 121220330117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5772396673 = 121220330133 / (1 + 2 + 1 + 2 + 2 + 0 + 3 + 3 + 0 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220330123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2886198316 + ... + 2886198357.

It is an arithmetic number, because the mean of its divisors is an integer number (23089586696).

Almost surely, 2^121220330133 is an apocalyptic number.

It is an amenable number.

121220330133 is a deficient number, since it is larger than the sum of its proper divisors (63496363435).

121220330133 is an equidigital number, since it uses as much as digits as its factorization.

121220330133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5772396683.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121220330133 its reverse (331033022121), we get a palindrome (452253352254).

The spelling of 121220330133 in words is "one hundred twenty-one billion, two hundred twenty million, three hundred thirty thousand, one hundred thirty-three".