110220421 has 8 divisors (see below), whose sum is σ = 111608280. Its totient is φ = 108837888.

The previous prime is 110220413. The next prime is 110220449. The reversal of 110220421 is 124022011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1852321 + 108368100 = 1361^2 + 10410^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110220421 - 2³ = 110220413 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 (110224421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54195 + ... + 56191.

It is an arithmetic number, because the mean of its divisors is an integer number (13951035).

Almost surely, 2^110220421 is an apocalyptic number.

It is an amenable number.

110220421 is a deficient number, since it is larger than the sum of its proper divisors (1387859).

110220421 is an equidigital number, since it uses as much as digits as its factorization.

110220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 110220421 is about 10498.5913817045. The cubic root of 110220421 is about 479.4618114356.

Adding to 110220421 its reverse (124022011), we get a palindrome (234242432).

The spelling of 110220421 in words is "one hundred ten million, two hundred twenty thousand, four hundred twenty-one".