1022120121444 has 12 divisors (see below), whose sum is σ = 2384946950064. Its totient is φ = 340706707144.

The previous prime is 1022120121317. The next prime is 1022120121461. The reversal of 1022120121444 is 4441210212201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42588338382 + ... + 42588338405.

It is an arithmetic number, because the mean of its divisors is an integer number (198745579172).

Almost surely, 2^{1022120121444} is an apocalyptic number.

It is an amenable number.

1022120121444 is an abundant number, since it is smaller than the sum of its proper divisors (1362826828620).

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

1022120121444 is a wasteful number, since it uses less digits than its factorization.

1022120121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85176676794 (or 85176676792 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1022120121444 its reverse (4441210212201), we get a palindrome (5463330333645).

The spelling of 1022120121444 in words is "one trillion, twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, four hundred forty-four".