1212012010112 has 32 divisors (see below), whose sum is σ = 2438461689300. Its totient is φ = 600005939200.

The previous prime is 1212012010043. The next prime is 1212012010117. The reversal of 1212012010112 is 2110102102121.

It can be written as a sum of positive squares in 2 ways, for example, as 1205375626816 + 6636383296 = 1097896^2 + 81464^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1212012010112² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212012010117) 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, 46862537 + ... + 46888392.

Almost surely, 2^{1212012010112} is an apocalyptic number.

It is an amenable number.

1212012010112 is an abundant number, since it is smaller than the sum of its proper divisors (1226449679188).

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

1212012010112 is an equidigital number, since it uses as much as digits as its factorization.

1212012010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93751044 (or 93751032 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212012010112 its reverse (2110102102121), we get a palindrome (3322114112233).

The spelling of 1212012010112 in words is "one trillion, two hundred twelve billion, twelve million, ten thousand, one hundred twelve".