1121002122111 has 4 divisors (see below), whose sum is σ = 1494669496152. Its totient is φ = 747334748072.

The previous prime is 1121002122073. The next prime is 1121002122193. The reversal of 1121002122111 is 1112212001211.

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 1121002122111 - 2⁶ = 1121002122047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121002122511) 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, 186833687016 + ... + 186833687021.

It is an arithmetic number, because the mean of its divisors is an integer number (373667374038).

Almost surely, 2^{1121002122111} is an apocalyptic number.

1121002122111 is a deficient number, since it is larger than the sum of its proper divisors (373667374041).

1121002122111 is an equidigital number, since it uses as much as digits as its factorization.

1121002122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373667374040.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121002122111 its reverse (1112212001211), we get a palindrome (2233214123322).

The spelling of 1121002122111 in words is "one trillion, one hundred twenty-one billion, two million, one hundred twenty-two thousand, one hundred eleven".