110022001221 has 32 divisors (see below), whose sum is σ = 165739032576. Its totient is φ = 64342040000.

The previous prime is 110022001169. The next prime is 110022001247. The reversal of 110022001221 is 122100220011.

It is a cyclic number.

It is not a de Polignac number, because 110022001221 - 2¹⁰ = 110022000197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110022001197 and 110022001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110022001291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389430 + ... + 609671.

It is an arithmetic number, because the mean of its divisors is an integer number (5179344768).

Almost surely, 2^110022001221 is an apocalyptic number.

110022001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110022001221 is a deficient number, since it is larger than the sum of its proper divisors (55717031355).

110022001221 is a wasteful number, since it uses less digits than its factorization.

110022001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999233.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110022001221 its reverse (122100220011), we get a palindrome (232122221232).

The spelling of 110022001221 in words is "one hundred ten billion, twenty-two million, one thousand, two hundred twenty-one".