1102011112121 has 4 divisors (see below), whose sum is σ = 1102014782544. Its totient is φ = 1102007441700.

The previous prime is 1102011112109. The next prime is 1102011112159. The reversal of 1102011112121 is 1212111102011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102011112121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102011112096 and 1102011112105.

It is not an unprimeable number, because it can be changed into a prime (1102011112721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340375 + ... + 2000156.

It is an arithmetic number, because the mean of its divisors is an integer number (275503695636).

Almost surely, 2^{1102011112121} is an apocalyptic number.

It is an amenable number.

1102011112121 is a deficient number, since it is larger than the sum of its proper divisors (3670423).

1102011112121 is an equidigital number, since it uses as much as digits as its factorization.

1102011112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670422.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1102011112121 its reverse (1212111102011), we get a palindrome (2314122214132).

The spelling of 1102011112121 in words is "one trillion, one hundred two billion, eleven million, one hundred twelve thousand, one hundred twenty-one".