120012111012 has 12 divisors (see below), whose sum is σ = 280028259056. Its totient is φ = 40004037000.

The previous prime is 120012110993. The next prime is 120012111013. The reversal of 120012111012 is 210111210021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×120012111012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 10001009251 = 120012111012 / (1 + 2 + 0 + 0 + 1 + 2 + 1 + 1 + 1 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (120012111013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000504614 + ... + 5000504637.

Almost surely, 2^120012111012 is an apocalyptic number.

120012111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120012111012 is an abundant number, since it is smaller than the sum of its proper divisors (160016148044).

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

120012111012 is a wasteful number, since it uses less digits than its factorization.

120012111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001009258 (or 10001009256 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120012111012 its reverse (210111210021), we get a palindrome (330123321033).

Subtracting 120012111012 from its reverse (210111210021), we obtain a palindrome (90099099009).

The spelling of 120012111012 in words is "one hundred twenty billion, twelve million, one hundred eleven thousand, twelve".