121001201 has 4 divisors (see below), whose sum is σ = 121201152. Its totient is φ = 120801252.

The previous prime is 121001197. The next prime is 121001203. The reversal of 121001201 is 102100121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102100121 = 47 ⋅2172343.

It is a cyclic number.

It is not a de Polignac number, because 121001201 - 2² = 121001197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99065 + ... + 100278.

It is an arithmetic number, because the mean of its divisors is an integer number (30300288).

Almost surely, 2^121001201 is an apocalyptic number.

It is an amenable number.

121001201 is a deficient number, since it is larger than the sum of its proper divisors (199951).

121001201 is an equidigital number, since it uses as much as digits as its factorization.

121001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199950.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 121001201 is about 11000.0545907736. The cubic root of 121001201 is about 494.6103807522.

Adding to 121001201 its reverse (102100121), we get a palindrome (223101322).

It can be divided in two parts, 12100120 and 1, that added together give a palindrome (12100121).

The spelling of 121001201 in words is "one hundred twenty-one million, one thousand, two hundred one".