1101222111012 has 48 divisors (see below), whose sum is σ = 2765267511552. Its totient is φ = 339817812480.

The previous prime is 1101222110983. The next prime is 1101222111013. The reversal of 1101222111012 is 2101112221011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101222110982 and 1101222111000.

It is not an unprimeable number, because it can be changed into a prime (1101222111013) 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 15 ways as a sum of consecutive naturals, for example, 44234668 + ... + 44259555.

It is an arithmetic number, because the mean of its divisors is an integer number (57609739824).

Almost surely, 2^{1101222111012} is an apocalyptic number.

1101222111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101222111012 is an abundant number, since it is smaller than the sum of its proper divisors (1664045400540).

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

1101222111012 is a wasteful number, since it uses less digits than its factorization.

1101222111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88494308 (or 88494306 counting only the distinct ones).

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

Adding to 1101222111012 its reverse (2101112221011), we get a palindrome (3202334332023).

The spelling of 1101222111012 in words is "one trillion, one hundred one billion, two hundred twenty-two million, one hundred eleven thousand, twelve".