120121220020110 has 64 divisors (see below), whose sum is σ = 307193480672832. Its totient is φ = 29956044957696.

The previous prime is 120121220020103. The next prime is 120121220020159. The reversal of 120121220020110 is 11020022121021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120121220020110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 750021217 + ... + 750181356.

It is an arithmetic number, because the mean of its divisors is an integer number (4799898135513).

Almost surely, 2^{120121220020110} is an apocalyptic number.

120121220020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121220020110 is an abundant number, since it is smaller than the sum of its proper divisors (187072260652722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120121220020110 is a wasteful number, since it uses less digits than its factorization.

120121220020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500202757.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120121220020110 its reverse (11020022121021), we get a palindrome (131141242141131).

The spelling of 120121220020110 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty million, twenty thousand, one hundred ten".