120100231212 has 48 divisors (see below), whose sum is σ = 309151080672. Its totient is φ = 36052600320.

The previous prime is 120100231193. The next prime is 120100231259. The reversal of 120100231212 is 212132001021.

It is a junction number, because it is equal to n+sod(n) for n = 120100231191 and 120100231200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9382303 + ... + 9395094.

It is an arithmetic number, because the mean of its divisors is an integer number (6440647514).

Almost surely, 2^120100231212 is an apocalyptic number.

120100231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120100231212 is an abundant number, since it is smaller than the sum of its proper divisors (189050849460).

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

120100231212 is a wasteful number, since it uses less digits than its factorization.

120100231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18777458 (or 18777456 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120100231212 its reverse (212132001021), we get a palindrome (332232232233).

The spelling of 120100231212 in words is "one hundred twenty billion, one hundred million, two hundred thirty-one thousand, two hundred twelve".