1020120120120 has 32 divisors (see below), whose sum is σ = 3060360360720. Its totient is φ = 272032032000.

The previous prime is 1020120120101. The next prime is 1020120120121. The reversal of 1020120120120 is 210210210201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020120120096 and 1020120120105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4250500381 + ... + 4250500620.

Almost surely, 2^{1020120120120} is an apocalyptic number.

1020120120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020120120120 is an abundant number, since it is smaller than the sum of its proper divisors (2040240240600).

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

1020120120120 is a wasteful number, since it uses less digits than its factorization.

1020120120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8501001015 (or 8501001011 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020120120120 its reverse (210210210201), we get a palindrome (1230330330321).

The spelling of 1020120120120 in words is "one trillion, twenty billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty".