110120121 has 8 divisors (see below), whose sum is σ = 163140960. Its totient is φ = 73413396.

The previous prime is 110120099. The next prime is 110120141. The reversal of 110120121 is 121021011.

It is a happy number.

It is not a de Polignac number, because 110120121 - 2⁶ = 110120057 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 (110120141) 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, 2039235 + ... + 2039288.

It is an arithmetic number, because the mean of its divisors is an integer number (20392620).

Almost surely, 2^110120121 is an apocalyptic number.

It is an amenable number.

110120121 is a deficient number, since it is larger than the sum of its proper divisors (53020839).

110120121 is an equidigital number, since it uses as much as digits as its factorization.

110120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078532 (or 4078526 counting only the distinct ones).

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

The square root of 110120121 is about 10493.8134631792. The cubic root of 110120121 is about 479.3163313941.

Adding to 110120121 its reverse (121021011), we get a palindrome (231141132).

The spelling of 110120121 in words is "one hundred ten million, one hundred twenty thousand, one hundred twenty-one".