121021012032 has 56 divisors (see below), whose sum is σ = 320618205600. Its totient is φ = 40287830016.

The previous prime is 121021012019. The next prime is 121021012033. The reversal of 121021012032 is 230210120121.

It is not an unprimeable number, because it can be changed into a prime (121021012033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262182 + ... + 557477.

It is an arithmetic number, because the mean of its divisors is an integer number (5725325100).

Almost surely, 2^121021012032 is an apocalyptic number.

121021012032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121021012032 is an abundant number, since it is smaller than the sum of its proper divisors (199597193568).

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

121021012032 is an equidigital number, since it uses as much as digits as its factorization.

121021012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820443 (or 820433 counting only the distinct ones).

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

Adding to 121021012032 its reverse (230210120121), we get a palindrome (351231132153).

The spelling of 121021012032 in words is "one hundred twenty-one billion, twenty-one million, twelve thousand, thirty-two".