121220113121133 has 32 divisors (see below), whose sum is σ = 174525286387200. Its totient is φ = 74397448472256.

The previous prime is 121220113120937. The next prime is 121220113121153. The reversal of 121220113121133 is 331121311022121.

It is not a de Polignac number, because 121220113121133 - 2⁸ = 121220113120877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220113121153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450198138 + ... + 450467316.

It is an arithmetic number, because the mean of its divisors is an integer number (5453915199600).

Almost surely, 2^{121220113121133} is an apocalyptic number.

121220113121133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121220113121133 is a deficient number, since it is larger than the sum of its proper divisors (53305173266067).

121220113121133 is a wasteful number, since it uses less digits than its factorization.

121220113121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300041.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 121220113121133 its reverse (331121311022121), we get a palindrome (452341424143254).

The spelling of 121220113121133 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred thirty-three".