121140201 has 24 divisors (see below), whose sum is σ = 202347264. Its totient is φ = 63897120.

The previous prime is 121140193. The next prime is 121140211. The reversal of 121140201 is 102041121.

It is a happy number.

It is not a de Polignac number, because 121140201 - 2³ = 121140193 is a prime.

It is a super-3 number, since 3×121140201³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121140211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29785 + ... + 33606.

It is an arithmetic number, because the mean of its divisors is an integer number (8431136).

Almost surely, 2^121140201 is an apocalyptic number.

It is an amenable number.

121140201 is a deficient number, since it is larger than the sum of its proper divisors (81207063).

121140201 is a wasteful number, since it uses less digits than its factorization.

121140201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63421 (or 63414 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121140201 is about 11006.3709277854. The cubic root of 121140201 is about 494.7997026579.

Adding to 121140201 its reverse (102041121), we get a palindrome (223181322).

The spelling of 121140201 in words is "one hundred twenty-one million, one hundred forty thousand, two hundred one".