110021122221 has 8 divisors (see below), whose sum is σ = 146702019840. Its totient is φ = 73343819712.

The previous prime is 110021122147. The next prime is 110021122231. The reversal of 110021122221 is 122221120011.

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

It is not a de Polignac number, because 110021122221 - 2¹¹ = 110021120173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110021122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021122231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826540 + ... + 950373.

It is an arithmetic number, because the mean of its divisors is an integer number (18337752480).

Almost surely, 2^110021122221 is an apocalyptic number.

It is an amenable number.

110021122221 is a deficient number, since it is larger than the sum of its proper divisors (36680897619).

110021122221 is a wasteful number, since it uses less digits than its factorization.

110021122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797555.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110021122221 its reverse (122221120011), we get a palindrome (232242242232).

The spelling of 110021122221 in words is "one hundred ten billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".