1121432223121 has 4 divisors (see below), whose sum is σ = 1281636826432. Its totient is φ = 961227619812.

The previous prime is 1121432223061. The next prime is 1121432223133. The reversal of 1121432223121 is 1213222341211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121432223121 - 2¹⁹ = 1121431698833 is a prime.

It is a super-2 number, since 2×1121432223121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121432223221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80102301645 + ... + 80102301658.

It is an arithmetic number, because the mean of its divisors is an integer number (320409206608).

Almost surely, 2^{1121432223121} is an apocalyptic number.

It is an amenable number.

1121432223121 is a deficient number, since it is larger than the sum of its proper divisors (160204603311).

1121432223121 is an equidigital number, since it uses as much as digits as its factorization.

1121432223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160204603310.

The product of its digits is 1152, while the sum is 25.

Adding to 1121432223121 its reverse (1213222341211), we get a palindrome (2334654564332).

The spelling of 1121432223121 in words is "one trillion, one hundred twenty-one billion, four hundred thirty-two million, two hundred twenty-three thousand, one hundred twenty-one".