1121221221022 has 16 divisors (see below), whose sum is σ = 1922303554272. Its totient is φ = 480470872320.

The previous prime is 1121221221019. The next prime is 1121221221037. The reversal of 1121221221022 is 2201221221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4242843 + ... + 4499350.

It is an arithmetic number, because the mean of its divisors is an integer number (120143972142).

Almost surely, 2^{1121221221022} is an apocalyptic number.

1121221221022 is a deficient number, since it is larger than the sum of its proper divisors (801082333250).

1121221221022 is an equidigital number, since it uses as much as digits as its factorization.

1121221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8751363.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1121221221022 its reverse (2201221221211), we get a palindrome (3322442442233).

The spelling of 1121221221022 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".