1121221320132 has 96 divisors (see below), whose sum is σ = 2790802667520. Its totient is φ = 349333776000.

The previous prime is 1121221320097. The next prime is 1121221320133. The reversal of 1121221320132 is 2310231221211.

It is a junction number, because it is equal to n+sod(n) for n = 1121221320099 and 1121221320108.

It is not an unprimeable number, because it can be changed into a prime (1121221320133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14172478 + ... + 14251370.

It is an arithmetic number, because the mean of its divisors is an integer number (29070861120).

Almost surely, 2^{1121221320132} is an apocalyptic number.

1121221320132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121221320132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395401333760).

1121221320132 is an abundant number, since it is smaller than the sum of its proper divisors (1669581347388).

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

1121221320132 is a wasteful number, since it uses less digits than its factorization.

1121221320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79753 (or 79751 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1121221320132 its reverse (2310231221211), we get a palindrome (3431452541343).

The spelling of 1121221320132 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, three hundred twenty thousand, one hundred thirty-two".