120002121000012 has 24 divisors (see below), whose sum is σ = 284184127345216. Its totient is φ = 39403681522128.

The previous prime is 120002120999947. The next prime is 120002121000019. The reversal of 120002121000012 is 210000121200021.

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

It is not an unprimeable number, because it can be changed into a prime (120002121000019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74628183898 + ... + 74628185505.

Almost surely, 2^{120002121000012} is an apocalyptic number.

120002121000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120002121000012 is an abundant number, since it is smaller than the sum of its proper divisors (164182006345204).

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

120002121000012 is a wasteful number, since it uses less digits than its factorization.

120002121000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149256369477 (or 149256369475 counting only the distinct ones).

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

Adding to 120002121000012 its reverse (210000121200021), we get a palindrome (330002242200033).

It can be divided in two parts, 1200021 and 21000012, that multiplied together give a palindrome (25200455400252).

The spelling of 120002121000012 in words is "one hundred twenty trillion, two billion, one hundred twenty-one million, twelve", and thus it is an aban number.