1022143443121 has 16 divisors (see below), whose sum is σ = 1072094018688. Its totient is φ = 973413302400.

The previous prime is 1022143443119. The next prime is 1022143443143. The reversal of 1022143443121 is 1213443412201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022143443121 - 2¹ = 1022143443119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022143443121.

It is not an unprimeable number, because it can be changed into a prime (1022143443421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2652751 + ... + 3013531.

It is an arithmetic number, because the mean of its divisors is an integer number (67005876168).

Almost surely, 2^{1022143443121} is an apocalyptic number.

It is an amenable number.

1022143443121 is a deficient number, since it is larger than the sum of its proper divisors (49950575567).

1022143443121 is a wasteful number, since it uses less digits than its factorization.

1022143443121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362472.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1022143443121 its reverse (1213443412201), we get a palindrome (2235586855322).

The spelling of 1022143443121 in words is "one trillion, twenty-two billion, one hundred forty-three million, four hundred forty-three thousand, one hundred twenty-one".