121010201 has 8 divisors (see below), whose sum is σ = 131195400.
Its totient is φ = 110950272.
The previous prime is 121010189. The next prime is 121010207. The reversal of 121010201 is 102010121.
Adding to 121010201 its reverse (102010121), we get a palindrome (223020322).
It can be divided in two parts, 1210 and 10201, that added together give a palindrome (11411).
It can be written as a sum of positive squares in 4 ways, for example, as 10201 + 121000000 = 101^2 + 11000^2
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 121010201 - 26 = 121010137 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (121010207) 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, 29300 + ... + 33173.
It is an arithmetic number, because the mean of its divisors is an integer number (16399425).
Almost surely, 2121010201 is an apocalyptic number.
It is an amenable number.
121010201 is a deficient number, since it is larger than the sum of its proper divisors (10185199).
121010201 is a wasteful number, since it uses less digits than its factorization.
121010201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62635.
The product of its (nonzero) digits is 4, while the sum is 8.
The square root of 121010201 is about 11000.4636720458.
The cubic root of 121010201 is about 494.6226433938.
The spelling of 121010201 in words is "one hundred twenty-one million, ten thousand, two hundred one".