121021332121 has 16 divisors (see below), whose sum is σ = 123537787200. Its totient is φ = 118521144000.

The previous prime is 121021332101. The next prime is 121021332139. The reversal of 121021332121 is 121233120121.

It is a cyclic number.

It is not a de Polignac number, because 121021332121 - 2⁹ = 121021331609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121021332101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23722471 + ... + 23727571.

It is an arithmetic number, because the mean of its divisors is an integer number (7721111700).

Almost surely, 2^121021332121 is an apocalyptic number.

It is an amenable number.

121021332121 is a deficient number, since it is larger than the sum of its proper divisors (2516455079).

121021332121 is a wasteful number, since it uses less digits than its factorization.

121021332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121021332121 its reverse (121233120121), we get a palindrome (242254452242).

The spelling of 121021332121 in words is "one hundred twenty-one billion, twenty-one million, three hundred thirty-two thousand, one hundred twenty-one".