1121000220111 has 8 divisors (see below), whose sum is σ = 1526468385024. Its totient is φ = 731432767640.

The previous prime is 1121000220079. The next prime is 1121000220133. The reversal of 1121000220111 is 1110220001211.

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 1121000220111 - 2⁵ = 1121000220079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121000221111) 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, 3975177945 + ... + 3975178226.

It is an arithmetic number, because the mean of its divisors is an integer number (190808548128).

Almost surely, 2^{1121000220111} is an apocalyptic number.

1121000220111 is a deficient number, since it is larger than the sum of its proper divisors (405468164913).

1121000220111 is an equidigital number, since it uses as much as digits as its factorization.

1121000220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950356221.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121000220111 its reverse (1110220001211), we get a palindrome (2231220221322).

The spelling of 1121000220111 in words is "one trillion, one hundred twenty-one billion, two hundred twenty thousand, one hundred eleven".