1121221010011 has 4 divisors (see below), whose sum is σ = 1121225992992. Its totient is φ = 1121216027032.

The previous prime is 1121221009973. The next prime is 1121221010051. The reversal of 1121221010011 is 1100101221211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121221010011 - 2¹³ = 1121221001819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121221009973 and 1121221010000.

It is not an unprimeable number, because it can be changed into a prime (1121221010051) 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, 2137180 + ... + 2609593.

It is an arithmetic number, because the mean of its divisors is an integer number (280306498248).

Almost surely, 2^{1121221010011} is an apocalyptic number.

1121221010011 is a deficient number, since it is larger than the sum of its proper divisors (4982981).

1121221010011 is an equidigital number, since it uses as much as digits as its factorization.

1121221010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982980.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121221010011 its reverse (1100101221211), we get a palindrome (2221322231222).

The spelling of 1121221010011 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, ten thousand, eleven".