1121321211121 has 8 divisors (see below), whose sum is σ = 1127072558304. Its totient is φ = 1115580625920.

The previous prime is 1121321211037. The next prime is 1121321211133. The reversal of 1121321211121 is 1211121231211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121321211121 - 2⁹ = 1121321210609 is a prime.

It is a super-2 number, since 2×1121321211121² (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 (1121321241121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481535 + ... + 2898388.

It is an arithmetic number, because the mean of its divisors is an integer number (140884069788).

Almost surely, 2^{1121321211121} is an apocalyptic number.

It is an amenable number.

1121321211121 is a deficient number, since it is larger than the sum of its proper divisors (5751347183).

1121321211121 is an equidigital number, since it uses as much as digits as its factorization.

1121321211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380991.

The product of its digits is 48, while the sum is 19.

Adding to 1121321211121 its reverse (1211121231211), we get a palindrome (2332442442332).

The spelling of 1121321211121 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".