201201121 has 8 divisors (see below), whose sum is σ = 219615264. Its totient is φ = 182807520.

The previous prime is 201201113. The next prime is 201201131. The reversal of 201201121 is 121102102.

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 201201121 - 2³ = 201201113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201201098 and 201201107.

It is not an unprimeable number, because it can be changed into a prime (201201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21286 + ... + 29248.

It is an arithmetic number, because the mean of its divisors is an integer number (27451908).

Almost surely, 2^201201121 is an apocalyptic number.

It is an amenable number.

201201121 is a deficient number, since it is larger than the sum of its proper divisors (18414143).

201201121 is a wasteful number, since it uses less digits than its factorization.

201201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271.

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

The square root of 201201121 is about 14184.5380961101. The cubic root of 201201121 is about 585.9719115472.

Adding to 201201121 its reverse (121102102), we get a palindrome (322303223).

The spelling of 201201121 in words is "two hundred one million, two hundred one thousand, one hundred twenty-one".