1100210121211 has 4 divisors (see below), whose sum is σ = 1100234845800. Its totient is φ = 1100185396624.

The previous prime is 1100210121187. The next prime is 1100210121221. The reversal of 1100210121211 is 1121210120011.

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 1100210121211 - 2¹³ = 1100210113019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100210121191 and 1100210121200.

It is not an unprimeable number, because it can be changed into a prime (1100210121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12295426 + ... + 12384583.

It is an arithmetic number, because the mean of its divisors is an integer number (275058711450).

Almost surely, 2^{1100210121211} is an apocalyptic number.

1100210121211 is a deficient number, since it is larger than the sum of its proper divisors (24724589).

1100210121211 is an equidigital number, since it uses as much as digits as its factorization.

1100210121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24724588.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1100210121211 its reverse (1121210120011), we get a palindrome (2221420241222).

The spelling of 1100210121211 in words is "one trillion, one hundred billion, two hundred ten million, one hundred twenty-one thousand, two hundred eleven".