1100222122121 has 4 divisors (see below), whose sum is σ = 1103759814144. Its totient is φ = 1096684430100.

The previous prime is 1100222122099. The next prime is 1100222122123. The reversal of 1100222122121 is 1212212220011.

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 1100222122121 - 2⁶ = 1100222122057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100222122121.

It is not an unprimeable number, because it can be changed into a prime (1100222122123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768845545 + ... + 1768846166.

It is an arithmetic number, because the mean of its divisors is an integer number (275939953536).

Almost surely, 2^{1100222122121} is an apocalyptic number.

It is an amenable number.

1100222122121 is a deficient number, since it is larger than the sum of its proper divisors (3537692023).

1100222122121 is an equidigital number, since it uses as much as digits as its factorization.

1100222122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537692022.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1100222122121 its reverse (1212212220011), we get a palindrome (2312434342132).

The spelling of 1100222122121 in words is "one trillion, one hundred billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".