110101421 has 2 divisors, whose sum is σ = 110101422. Its totient is φ = 110101420.

The previous prime is 110101417. The next prime is 110101427. The reversal of 110101421 is 124101011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59136100 + 50965321 = 7690^2 + 7139^2 .

It is a cyclic number.

It is not a de Polignac number, because 110101421 - 2² = 110101417 is a prime.

It is a super-3 number, since 3×110101421³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110101427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050710 + 55050711.

It is an arithmetic number, because the mean of its divisors is an integer number (55050711).

Almost surely, 2^110101421 is an apocalyptic number.

It is an amenable number.

110101421 is a deficient number, since it is larger than the sum of its proper divisors (1).

110101421 is an equidigital number, since it uses as much as digits as its factorization.

110101421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 110101421 is about 10492.9224241867. The cubic root of 110101421 is about 479.2891982273.

Adding to 110101421 its reverse (124101011), we get a palindrome (234202432).

The spelling of 110101421 in words is "one hundred ten million, one hundred one thousand, four hundred twenty-one".