1131121221022 has 16 divisors (see below), whose sum is σ = 1838405615760. Its totient is φ = 518853148992.

The previous prime is 1131121220923. The next prime is 1131121221037. The reversal of 1131121221022 is 2201221211311.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 133445647 + ... + 133454122.

It is an arithmetic number, because the mean of its divisors is an integer number (114900350985).

Almost surely, 2^{1131121221022} is an apocalyptic number.

1131121221022 is a deficient number, since it is larger than the sum of its proper divisors (707284394738).

1131121221022 is a wasteful number, since it uses less digits than its factorization.

1131121221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266899947.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1131121221022 its reverse (2201221211311), we get a palindrome (3332342432333).

The spelling of 1131121221022 in words is "one trillion, one hundred thirty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-two".