121121020232 has 64 divisors (see below), whose sum is σ = 245152785600. Its totient is φ = 55890841600.

The previous prime is 121121020213. The next prime is 121121020243. The reversal of 121121020232 is 232020121121.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 121121020232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3198803 + ... + 3236445.

It is an arithmetic number, because the mean of its divisors is an integer number (3830512275).

Almost surely, 2^121121020232 is an apocalyptic number.

It is an amenable number.

121121020232 is an abundant number, since it is smaller than the sum of its proper divisors (124031765368).

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

121121020232 is a wasteful number, since it uses less digits than its factorization.

121121020232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38126 (or 38122 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121121020232 its reverse (232020121121), we get a palindrome (353141141353).

The spelling of 121121020232 in words is "one hundred twenty-one billion, one hundred twenty-one million, twenty thousand, two hundred thirty-two".