121220000133 has 32 divisors (see below), whose sum is σ = 174381527040. Its totient is φ = 74660097600.

The previous prime is 121220000123. The next prime is 121220000173. The reversal of 121220000133 is 331000022121.

It is not a de Polignac number, because 121220000133 - 2²⁹ = 120683129221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 660408 + ... + 823758.

It is an arithmetic number, because the mean of its divisors is an integer number (5449422720).

Almost surely, 2^121220000133 is an apocalyptic number.

It is an amenable number.

121220000133 is a deficient number, since it is larger than the sum of its proper divisors (53161526907).

121220000133 is a wasteful number, since it uses less digits than its factorization.

121220000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163697.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121220000133 its reverse (331000022121), we get a palindrome (452220022254).

The spelling of 121220000133 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred thirty-three", and thus it is an aban number.