121021333321 has 12 divisors (see below), whose sum is σ = 148189388880. Its totient is φ = 98272961640.

The previous prime is 121021333313. The next prime is 121021333351. The reversal of 121021333321 is 123333120121.

It is not a de Polignac number, because 121021333321 - 2³ = 121021333313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121021333292 and 121021333301.

It is not an unprimeable number, because it can be changed into a prime (121021333351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64994415 + ... + 64996276.

It is an arithmetic number, because the mean of its divisors is an integer number (12349115740).

Almost surely, 2^121021333321 is an apocalyptic number.

It is an amenable number.

121021333321 is a deficient number, since it is larger than the sum of its proper divisors (27168055559).

121021333321 is a wasteful number, since it uses less digits than its factorization.

121021333321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129990724 (or 129990717 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121021333321 its reverse (123333120121), we get a palindrome (244354453442).

The spelling of 121021333321 in words is "one hundred twenty-one billion, twenty-one million, three hundred thirty-three thousand, three hundred twenty-one".