1121011121211 has 8 divisors (see below), whose sum is σ = 1494693617664. Its totient is φ = 747334686120.

The previous prime is 1121011121189. The next prime is 1121011121261. The reversal of 1121011121211 is 1121211101211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1121011121211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121011121261) 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 7 ways as a sum of consecutive naturals, for example, 1064655 + ... + 1837256.

It is an arithmetic number, because the mean of its divisors is an integer number (186836702208).

Almost surely, 2^{1121011121211} is an apocalyptic number.

1121011121211 is a deficient number, since it is larger than the sum of its proper divisors (373682496453).

1121011121211 is a wasteful number, since it uses less digits than its factorization.

1121011121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030681.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1121011121211 its reverse (1121211101211), we get a palindrome (2242222222422).

The spelling of 1121011121211 in words is "one trillion, one hundred twenty-one billion, eleven million, one hundred twenty-one thousand, two hundred eleven".