110111121002021 has 2 divisors, whose sum is σ = 110111121002022. Its totient is φ = 110111121002020.

The previous prime is 110111121001967. The next prime is 110111121002023. The reversal of 110111121002021 is 120200121111011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106122756528100 + 3988364473921 = 10301590^2 + 1997089^2 .

It is a cyclic number.

It is not a de Polignac number, because 110111121002021 - 2²⁶ = 110111053893157 is a prime.

Together with 110111121002023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 110111121001987 and 110111121002005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110111121002023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55055560501010 + 55055560501011.

It is an arithmetic number, because the mean of its divisors is an integer number (55055560501011).

Almost surely, 2^{110111121002021} is an apocalyptic number.

It is an amenable number.

110111121002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110111121002021 is an equidigital number, since it uses as much as digits as its factorization.

110111121002021 is an evil number, because the sum of its binary digits is even.

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

Adding to 110111121002021 its reverse (120200121111011), we get a palindrome (230311242113032).

The spelling of 110111121002021 in words is "one hundred ten trillion, one hundred eleven billion, one hundred twenty-one million, two thousand, twenty-one".