101201121 has 24 divisors (see below), whose sum is σ = 170476800. Its totient is φ = 57827448.

The previous prime is 101201077. The next prime is 101201123. The reversal of 101201121 is 121102101.

It is a happy number.

It is not a de Polignac number, because 101201121 - 2⁷ = 101200993 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 (101201123) 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, 13305 + ... + 19478.

It is an arithmetic number, because the mean of its divisors is an integer number (7103200).

Almost surely, 2^101201121 is an apocalyptic number.

It is an amenable number.

101201121 is a deficient number, since it is larger than the sum of its proper divisors (69275679).

101201121 is an equidigital number, since it uses as much as digits as its factorization.

101201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32810 (or 32793 counting only the distinct ones).

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

The square root of 101201121 is about 10059.8767885099. The cubic root of 101201121 is about 466.0098621329.

Adding to 101201121 its reverse (121102101), we get a palindrome (222303222).

The spelling of 101201121 in words is "one hundred one million, two hundred one thousand, one hundred twenty-one".