121013021232 has 60 divisors (see below), whose sum is σ = 343723165240. Its totient is φ = 39735615744.

The previous prime is 121013021231. The next prime is 121013021249. The reversal of 121013021232 is 232120310121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121013021231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6261757 + ... + 6281052.

Almost surely, 2^121013021232 is an apocalyptic number.

121013021232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121013021232 is an abundant number, since it is smaller than the sum of its proper divisors (222710144008).

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

121013021232 is a wasteful number, since it uses less digits than its factorization.

121013021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542890 (or 12542881 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121013021232 its reverse (232120310121), we get a palindrome (353133331353).

The spelling of 121013021232 in words is "one hundred twenty-one billion, thirteen million, twenty-one thousand, two hundred thirty-two".