1120321213221 has 48 divisors (see below), whose sum is σ = 1742097602880. Its totient is φ = 638543727360.

The previous prime is 1120321213211. The next prime is 1120321213279. The reversal of 1120321213221 is 1223121230211.

It is not a de Polignac number, because 1120321213221 - 2⁶ = 1120321213157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120321213211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107110290 + ... + 107120748.

It is an arithmetic number, because the mean of its divisors is an integer number (36293700060).

Almost surely, 2^{1120321213221} is an apocalyptic number.

It is an amenable number.

1120321213221 is a deficient number, since it is larger than the sum of its proper divisors (621776389659).

1120321213221 is a wasteful number, since it uses less digits than its factorization.

1120321213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274 (or 12267 counting only the distinct ones).

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

Adding to 1120321213221 its reverse (1223121230211), we get a palindrome (2343442443432).

The spelling of 1120321213221 in words is "one trillion, one hundred twenty billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-one".