1121323302221 has 4 divisors (see below), whose sum is σ = 1121438402112. Its totient is φ = 1121208202332.

The previous prime is 1121323302217. The next prime is 1121323302227. The reversal of 1121323302221 is 1222033231211.

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 1121323302221 - 2² = 1121323302217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121323302227) 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, 57535331 + ... + 57554816.

It is an arithmetic number, because the mean of its divisors is an integer number (280359600528).

Almost surely, 2^{1121323302221} is an apocalyptic number.

It is an amenable number.

1121323302221 is a deficient number, since it is larger than the sum of its proper divisors (115099891).

1121323302221 is an equidigital number, since it uses as much as digits as its factorization.

1121323302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115099890.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1121323302221 its reverse (1222033231211), we get a palindrome (2343356533432).

The spelling of 1121323302221 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred two thousand, two hundred twenty-one".