120001212121112 has 64 divisors (see below), whose sum is σ = 262482676372800. Its totient is φ = 50368883466240.

The previous prime is 120001212121111. The next prime is 120001212121123. The reversal of 120001212121112 is 211121212100021.

120001212121112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×120001212121112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001212121111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74588537 + ... + 76180392.

It is an arithmetic number, because the mean of its divisors is an integer number (4101291818325).

Almost surely, 2^{120001212121112} is an apocalyptic number.

It is an amenable number.

120001212121112 is an abundant number, since it is smaller than the sum of its proper divisors (142481464251688).

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

120001212121112 is a wasteful number, since it uses less digits than its factorization.

120001212121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150769236 (or 150769232 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120001212121112 its reverse (211121212100021), we get a palindrome (331122424221133).

The spelling of 120001212121112 in words is "one hundred twenty trillion, one billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twelve".