120111111211020 has 96 divisors (see below), whose sum is σ = 342676034168832. Its totient is φ = 31423515072768.

The previous prime is 120111111210997. The next prime is 120111111211043. The reversal of 120111111211020 is 20112111111021.

120111111211020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (120111111210997) and next prime (120111111211043).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55487949 + ... + 57611931.

It is an arithmetic number, because the mean of its divisors is an integer number (3569542022592).

Almost surely, 2^{120111111211020} is an apocalyptic number.

120111111211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111111211020 is an abundant number, since it is smaller than the sum of its proper divisors (222564922957812).

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

120111111211020 is a wasteful number, since it uses less digits than its factorization.

120111111211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141831 (or 2141829 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 120111111211020 its reverse (20112111111021), we get a palindrome (140223222322041).

Subtracting from 120111111211020 its reverse (20112111111021), we obtain a palindrome (99999000099999).

The spelling of 120111111211020 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred eleven million, two hundred eleven thousand, twenty".