1131121221032 has 32 divisors (see below), whose sum is σ = 2313697867200. Its totient is φ = 514136937600.

The previous prime is 1131121220923. The next prime is 1131121221037. The reversal of 1131121221032 is 2301221211311.

It is a junction number, because it is equal to n+sod(n) for n = 1131121220995 and 1131121221013.

It is not an unprimeable number, because it can be changed into a prime (1131121221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9707357 + ... + 9823187.

It is an arithmetic number, because the mean of its divisors is an integer number (72303058350).

Almost surely, 2^{1131121221032} is an apocalyptic number.

It is an amenable number.

1131121221032 is an abundant number, since it is smaller than the sum of its proper divisors (1182576646168).

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

1131121221032 is a wasteful number, since it uses less digits than its factorization.

1131121221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226817 (or 226813 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1131121221032 its reverse (2301221211311), we get a palindrome (3432342432343).

The spelling of 1131121221032 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, thirty-two".