1102111211121 has 4 divisors (see below), whose sum is σ = 1469481614832. Its totient is φ = 734740807412.

The previous prime is 1102111211111. The next prime is 1102111211137. The reversal of 1102111211121 is 1211121112011.

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 not a de Polignac number, because 1102111211121 - 2³⁹ = 552355397233 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102111211121.

It is not an unprimeable number, because it can be changed into a prime (1102111211111) 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, 183685201851 + ... + 183685201856.

It is an arithmetic number, because the mean of its divisors is an integer number (367370403708).

Almost surely, 2^{1102111211121} is an apocalyptic number.

It is an amenable number.

1102111211121 is a deficient number, since it is larger than the sum of its proper divisors (367370403711).

1102111211121 is an equidigital number, since it uses as much as digits as its factorization.

1102111211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367370403710.

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

Adding to 1102111211121 its reverse (1211121112011), we get a palindrome (2313232323132).

The spelling of 1102111211121 in words is "one trillion, one hundred two billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-one".