121220100132 has 12 divisors (see below), whose sum is σ = 282846900336. Its totient is φ = 40406700040.

The previous prime is 121220100109. The next prime is 121220100163. The reversal of 121220100132 is 231001022121.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5050837494 + ... + 5050837517.

It is an arithmetic number, because the mean of its divisors is an integer number (23570575028).

Almost surely, 2^121220100132 is an apocalyptic number.

121220100132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220100132 is an abundant number, since it is smaller than the sum of its proper divisors (161626800204).

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

121220100132 is a wasteful number, since it uses less digits than its factorization.

121220100132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101675018 (or 10101675016 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121220100132 its reverse (231001022121), we get a palindrome (352221122253).

The spelling of 121220100132 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred thousand, one hundred thirty-two".