121021201 has 8 divisors (see below), whose sum is σ = 138385664. Its totient is φ = 103675680.

The previous prime is 121021183. The next prime is 121021211. The reversal of 121021201 is 102120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121021201 - 2⁵ = 121021169 is a prime.

It is a super-2 number, since 2×121021201² = 29292262182964802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13816 + ... + 20806.

It is an arithmetic number, because the mean of its divisors is an integer number (17298208).

Almost surely, 2^121021201 is an apocalyptic number.

It is an amenable number.

121021201 is a deficient number, since it is larger than the sum of its proper divisors (17364463).

121021201 is an equidigital number, since it uses as much as digits as its factorization.

121021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121021201 is about 11000.9636396090. The cubic root of 121021201 is about 494.6376302411.

Adding to 121021201 its reverse (102120121), we get a palindrome (223141322).

The spelling of 121021201 in words is "one hundred twenty-one million, twenty-one thousand, two hundred one".