1101212220012 has 12 divisors (see below), whose sum is σ = 2569495180056. Its totient is φ = 367070740000.

The previous prime is 1101212220001. The next prime is 1101212220013. The reversal of 1101212220012 is 2100222121011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1101212219973 and 1101212220000.

It is not an unprimeable number, because it can be changed into a prime (1101212220013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45883842489 + ... + 45883842512.

It is an arithmetic number, because the mean of its divisors is an integer number (214124598338).

Almost surely, 2^{1101212220012} is an apocalyptic number.

1101212220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101212220012 is an abundant number, since it is smaller than the sum of its proper divisors (1468282960044).

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

1101212220012 is a wasteful number, since it uses less digits than its factorization.

1101212220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91767685008 (or 91767685006 counting only the distinct ones).

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

Adding to 1101212220012 its reverse (2100222121011), we get a palindrome (3201434341023).

Subtracting 1101212220012 from its reverse (2100222121011), we obtain a palindrome (999009900999).

The spelling of 1101212220012 in words is "one trillion, one hundred one billion, two hundred twelve million, two hundred twenty thousand, twelve".