120021020112 has 40 divisors (see below), whose sum is σ = 354347774656. Its totient is φ = 34291719936.

The previous prime is 120021020107. The next prime is 120021020149. The reversal of 120021020112 is 211020120021.

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

It is a congruent number.

It is an unprimeable number.

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, 178602373 + ... + 178603044.

Almost surely, 2^120021020112 is an apocalyptic number.

120021020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120021020112 is an abundant number, since it is smaller than the sum of its proper divisors (234326754544).

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

120021020112 is a wasteful number, since it uses less digits than its factorization.

120021020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357205435 (or 357205429 counting only the distinct ones).

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

Adding to 120021020112 its reverse (211020120021), we get a palindrome (331041140133).

Subtracting 120021020112 from its reverse (211020120021), we obtain a palindrome (90999099909).

The spelling of 120021020112 in words is "one hundred twenty billion, twenty-one million, twenty thousand, one hundred twelve".