110000201221 has 16 divisors (see below), whose sum is σ = 111508811568. Its totient is φ = 108499968000.

The previous prime is 110000201209. The next prime is 110000201237. The reversal of 110000201221 is 122102000011.

It can be written as a sum of positive squares in 8 ways, for example, as 12096920196 + 97903281025 = 109986^2 + 312895^2 .

It is a cyclic number.

It is not a de Polignac number, because 110000201221 - 2¹⁹ = 109999676933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110000201198 and 110000201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000201251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45062361 + ... + 45064801.

It is an arithmetic number, because the mean of its divisors is an integer number (6969300723).

Almost surely, 2^110000201221 is an apocalyptic number.

It is an amenable number.

110000201221 is a deficient number, since it is larger than the sum of its proper divisors (1508610347).

110000201221 is an equidigital number, since it uses as much as digits as its factorization.

110000201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110000201221 its reverse (122102000011), we get a palindrome (232102201232).

The spelling of 110000201221 in words is "one hundred ten billion, two hundred one thousand, two hundred twenty-one".