110021211121111 has 4 divisors (see below), whose sum is σ = 110021749271424. Its totient is φ = 110020672970800.

The previous prime is 110021211121043. The next prime is 110021211121139. The reversal of 110021211121111 is 111121112120011.

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 110021211121111 - 2²³ = 110021202732503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021211121141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268768375 + ... + 269177416.

It is an arithmetic number, because the mean of its divisors is an integer number (27505437317856).

Almost surely, 2^{110021211121111} is an apocalyptic number.

110021211121111 is a deficient number, since it is larger than the sum of its proper divisors (538150313).

110021211121111 is an equidigital number, since it uses as much as digits as its factorization.

110021211121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538150312.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 110021211121111 its reverse (111121112120011), we get a palindrome (221142323241122).

The spelling of 110021211121111 in words is "one hundred ten trillion, twenty-one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred eleven".