1201112011212 has 24 divisors (see below), whose sum is σ = 2802613724736. Its totient is φ = 400367951568.

The previous prime is 1201112011201. The next prime is 1201112011237. The reversal of 1201112011212 is 2121102111021.

It is a happy number.

It is a super-2 number, since 2×1201112011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201112011191 and 1201112011200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2356683 + ... + 2820669.

It is an arithmetic number, because the mean of its divisors is an integer number (116775571864).

Almost surely, 2^{1201112011212} is an apocalyptic number.

1201112011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201112011212 is an abundant number, since it is smaller than the sum of its proper divisors (1601501713524).

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

1201112011212 is a wasteful number, since it uses less digits than its factorization.

1201112011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679717 (or 679715 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1201112011212 its reverse (2121102111021), we get a palindrome (3322214122233).

The spelling of 1201112011212 in words is "one trillion, two hundred one billion, one hundred twelve million, eleven thousand, two hundred twelve".