110112121102021 has 2 divisors, whose sum is σ = 110112121102022. Its totient is φ = 110112121102020.

The previous prime is 110112121101991. The next prime is 110112121102037. The reversal of 110112121102021 is 120201121211011.

It is an a-pointer prime, because the next prime (110112121102037) can be obtained adding 110112121102021 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98039484417121 + 12072636684900 = 9901489^2 + 3474570^2 .

It is a cyclic number.

It is not a de Polignac number, because 110112121102021 - 2¹¹ = 110112121099973 is a prime.

It is a super-2 number, since 2×110112121102021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110112121101986 and 110112121102004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110112121102051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55056060551010 + 55056060551011.

It is an arithmetic number, because the mean of its divisors is an integer number (55056060551011).

Almost surely, 2^{110112121102021} is an apocalyptic number.

It is an amenable number.

110112121102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110112121102021 is an equidigital number, since it uses as much as digits as its factorization.

110112121102021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 110112121102021 its reverse (120201121211011), we get a palindrome (230313242313032).

The spelling of 110112121102021 in words is "one hundred ten trillion, one hundred twelve billion, one hundred twenty-one million, one hundred two thousand, twenty-one".