1121120022421 has 64 divisors (see below), whose sum is σ = 1419224592384. Its totient is φ = 863959219200.

The previous prime is 1121120022409. The next prime is 1121120022427. The reversal of 1121120022421 is 1242200211211.

It is not a de Polignac number, because 1121120022421 - 2⁵ = 1121120022389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121120022427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34514830 + ... + 34547296.

It is an arithmetic number, because the mean of its divisors is an integer number (22175384256).

Almost surely, 2^{1121120022421} is an apocalyptic number.

It is an amenable number.

1121120022421 is a deficient number, since it is larger than the sum of its proper divisors (298104569963).

1121120022421 is a wasteful number, since it uses less digits than its factorization.

1121120022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32690.

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

Adding to 1121120022421 its reverse (1242200211211), we get a palindrome (2363320233632).

The spelling of 1121120022421 in words is "one trillion, one hundred twenty-one billion, one hundred twenty million, twenty-two thousand, four hundred twenty-one".