1121222011100 has 36 divisors (see below), whose sum is σ = 2474289942600. Its totient is φ = 440887296960.

The previous prime is 1121222011097. The next prime is 1121222011109. The reversal of 1121222011100 is 11102221211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222011109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95012915 + ... + 95024714.

Almost surely, 2^{1121222011100} is an apocalyptic number.

1121222011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121222011100 is an abundant number, since it is smaller than the sum of its proper divisors (1353067931500).

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

1121222011100 is a wasteful number, since it uses less digits than its factorization.

1121222011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190037702 (or 190037695 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121222011100 its reverse (11102221211), we get a palindrome (1132324232311).

The spelling of 1121222011100 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, eleven thousand, one hundred".