1212012020112 has 40 divisors (see below), whose sum is σ = 3131143820160. Its totient is φ = 403989456000.

The previous prime is 1212012020077. The next prime is 1212012020117. The reversal of 1212012020112 is 2110202102121.

It is a junction number, because it is equal to n+sod(n) for n = 1212012020091 and 1212012020100.

It is not an unprimeable number, because it can be changed into a prime (1212012020117) 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, 935737 + ... + 1816487.

It is an arithmetic number, because the mean of its divisors is an integer number (78278595504).

Almost surely, 2^{1212012020112} is an apocalyptic number.

1212012020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212012020112 is an abundant number, since it is smaller than the sum of its proper divisors (1919131800048).

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

1212012020112 is a wasteful number, since it uses less digits than its factorization.

1212012020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909431 (or 909425 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212012020112 its reverse (2110202102121), we get a palindrome (3322214122233).

The spelling of 1212012020112 in words is "one trillion, two hundred twelve billion, twelve million, twenty thousand, one hundred twelve".