1121301131221 has 8 divisors (see below), whose sum is σ = 1179627141600. Its totient is φ = 1064285817840.

The previous prime is 1121301131213. The next prime is 1121301131261. The reversal of 1121301131221 is 1221311031211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121301131221 - 2³ = 1121301131213 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 (1121301131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327672495 + ... + 327675916.

It is an arithmetic number, because the mean of its divisors is an integer number (147453392700).

Almost surely, 2^{1121301131221} is an apocalyptic number.

It is an amenable number.

1121301131221 is a deficient number, since it is larger than the sum of its proper divisors (58326010379).

1121301131221 is an equidigital number, since it uses as much as digits as its factorization.

1121301131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655348499.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1121301131221 its reverse (1221311031211), we get a palindrome (2342612162432).

The spelling of 1121301131221 in words is "one trillion, one hundred twenty-one billion, three hundred one million, one hundred thirty-one thousand, two hundred twenty-one".