121021332201 has 40 divisors (see below), whose sum is σ = 225394238784. Its totient is φ = 62868221280.

The previous prime is 121021332197. The next prime is 121021332203. The reversal of 121021332201 is 102233120121.

It is not a de Polignac number, because 121021332201 - 2² = 121021332197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121021332203) 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 39 ways as a sum of consecutive naturals, for example, 9695650 + ... + 9708123.

Almost surely, 2^121021332201 is an apocalyptic number.

121021332201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121021332201 is a deficient number, since it is larger than the sum of its proper divisors (104372906583).

121021332201 is a wasteful number, since it uses less digits than its factorization.

121021332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19403803 (or 19403794 counting only the distinct ones).

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

Adding to 121021332201 its reverse (102233120121), we get a palindrome (223254452322).

The spelling of 121021332201 in words is "one hundred twenty-one billion, twenty-one million, three hundred thirty-two thousand, two hundred one".