110121021210021 has 32 divisors (see below), whose sum is σ = 153724359720960. Its totient is φ = 70026994774464.

The previous prime is 110121021209959. The next prime is 110121021210023. The reversal of 110121021210021 is 120012120121011.

It is a happy number.

It is not a de Polignac number, because 110121021210021 - 2⁹ = 110121021209509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121021210023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409202316 + ... + 409471338.

It is an arithmetic number, because the mean of its divisors is an integer number (4803886241280).

Almost surely, 2^{110121021210021} is an apocalyptic number.

It is an amenable number.

110121021210021 is a deficient number, since it is larger than the sum of its proper divisors (43603338510939).

110121021210021 is a wasteful number, since it uses less digits than its factorization.

110121021210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325825.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110121021210021 its reverse (120012120121011), we get a palindrome (230133141331032).

The spelling of 110121021210021 in words is "one hundred ten trillion, one hundred twenty-one billion, twenty-one million, two hundred ten thousand, twenty-one".