1212220001112 has 64 divisors (see below), whose sum is σ = 3057513868800. Its totient is φ = 400487512320.

The previous prime is 1212220001101. The next prime is 1212220001191. The reversal of 1212220001112 is 2111000222121.

It is a junction number, because it is equal to n+sod(n) for n = 1212220001091 and 1212220001100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782589 + ... + 2366867.

It is an arithmetic number, because the mean of its divisors is an integer number (47773654200).

Almost surely, 2^{1212220001112} is an apocalyptic number.

1212220001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212220001112 is an abundant number, since it is smaller than the sum of its proper divisors (1845293867688).

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

1212220001112 is a wasteful number, since it uses less digits than its factorization.

1212220001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585056 (or 585052 counting only the distinct ones).

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

Adding to 1212220001112 its reverse (2111000222121), we get a palindrome (3323220223233).

The spelling of 1212220001112 in words is "one trillion, two hundred twelve billion, two hundred twenty million, one thousand, one hundred twelve".