121030201 has 8 divisors (see below), whose sum is σ = 122081544. Its totient is φ = 119982720.

The previous prime is 121030193. The next prime is 121030213. The reversal of 121030201 is 102030121.

It can be written as a sum of positive squares in 4 ways, for example, as 23040000 + 97990201 = 4800^2 + 9899^2 .

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 121030201 - 2³ = 121030193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121030241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118971 + ... + 119983.

It is an arithmetic number, because the mean of its divisors is an integer number (15260193).

Almost surely, 2^121030201 is an apocalyptic number.

It is an amenable number.

121030201 is a deficient number, since it is larger than the sum of its proper divisors (1051343).

121030201 is a wasteful number, since it uses less digits than its factorization.

121030201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121030201 is about 11001.3726870786. The cubic root of 121030201 is about 494.6498915317.

Adding to 121030201 its reverse (102030121), we get a palindrome (223060322).

The spelling of 121030201 in words is "one hundred twenty-one million, thirty thousand, two hundred one".