121110201 has 16 divisors (see below), whose sum is σ = 179592000. Its totient is φ = 80663904.

The previous prime is 121110191. The next prime is 121110233. The reversal of 121110201 is 102011121.

It is a happy number.

It is not a de Polignac number, because 121110201 - 2⁶ = 121110137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121110251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55605 + ... + 57741.

It is an arithmetic number, because the mean of its divisors is an integer number (11224500).

Almost surely, 2^121110201 is an apocalyptic number.

It is an amenable number.

121110201 is a deficient number, since it is larger than the sum of its proper divisors (58481799).

121110201 is a wasteful number, since it uses less digits than its factorization.

121110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 121110201 is about 11005.0079963624. The cubic root of 121110201 is about 494.7588540751.

Adding to 121110201 its reverse (102011121), we get a palindrome (223121322).

The spelling of 121110201 in words is "one hundred twenty-one million, one hundred ten thousand, two hundred one".