1121000011211 has 4 divisors (see below), whose sum is σ = 1121709955800. Its totient is φ = 1120290066624.

The previous prime is 1121000011207. The next prime is 1121000011213. The reversal of 1121000011211 is 1121100001211.

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 1121000011211 - 2² = 1121000011207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121000011192 and 1121000011201.

It is not an unprimeable number, because it can be changed into a prime (1121000011213) 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, 354969926 + ... + 354973083.

It is an arithmetic number, because the mean of its divisors is an integer number (280427488950).

Almost surely, 2^{1121000011211} is an apocalyptic number.

1121000011211 is a deficient number, since it is larger than the sum of its proper divisors (709944589).

1121000011211 is an equidigital number, since it uses as much as digits as its factorization.

1121000011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709944588.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1121000011211 its reverse (1121100001211), we get a palindrome (2242100012422).

The spelling of 1121000011211 in words is "one trillion, one hundred twenty-one billion, eleven thousand, two hundred eleven".