1113120311221 has 16 divisors (see below), whose sum is σ = 1139563252800. Its totient is φ = 1086995783808.

The previous prime is 1113120311201. The next prime is 1113120311231. The reversal of 1113120311221 is 1221130213111.

It is a cyclic number.

It is not a de Polignac number, because 1113120311221 - 2⁵ = 1113120311189 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 (1113120311201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24051115 + ... + 24097351.

It is an arithmetic number, because the mean of its divisors is an integer number (71222703300).

Almost surely, 2^{1113120311221} is an apocalyptic number.

It is an amenable number.

1113120311221 is a deficient number, since it is larger than the sum of its proper divisors (26442941579).

1113120311221 is an equidigital number, since it uses as much as digits as its factorization.

1113120311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49668.

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

Adding to 1113120311221 its reverse (1221130213111), we get a palindrome (2334250524332).

The spelling of 1113120311221 in words is "one trillion, one hundred thirteen billion, one hundred twenty million, three hundred eleven thousand, two hundred twenty-one".