110100100220221 has 4 divisors (see below), whose sum is σ = 110100938169052. Its totient is φ = 110099262271392.

The previous prime is 110100100220191. The next prime is 110100100220233. The reversal of 110100100220221 is 122022001001011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91191613324900 + 18908486895321 = 9549430^2 + 4348389^2 .

It is a cyclic number.

It is not a de Polignac number, because 110100100220221 - 2⁹ = 110100100219709 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 (110100100220251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418777296 + ... + 419040121.

It is an arithmetic number, because the mean of its divisors is an integer number (27525234542263).

Almost surely, 2^{110100100220221} is an apocalyptic number.

It is an amenable number.

110100100220221 is a deficient number, since it is larger than the sum of its proper divisors (837948831).

110100100220221 is an equidigital number, since it uses as much as digits as its factorization.

110100100220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837948830.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110100100220221 its reverse (122022001001011), we get a palindrome (232122101221232).

The spelling of 110100100220221 in words is "one hundred ten trillion, one hundred billion, one hundred million, two hundred twenty thousand, two hundred twenty-one".