21110022212201 has 8 divisors (see below), whose sum is σ = 22771823121600. Its totient is φ = 19453643166672.

The previous prime is 21110022212159. The next prime is 21110022212243. The reversal of 21110022212201 is 10221222001112.

It is an interprime number because it is at equal distance from previous prime (21110022212159) and next prime (21110022212243).

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

It is not a de Polignac number, because 21110022212201 - 2¹⁰ = 21110022211177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21110022212201.

It is not an unprimeable number, because it can be changed into a prime (21110022214201) 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, 1355457875 + ... + 1355473448.

It is an arithmetic number, because the mean of its divisors is an integer number (2846477890200).

Almost surely, 2^{21110022212201} is an apocalyptic number.

It is an amenable number.

21110022212201 is a deficient number, since it is larger than the sum of its proper divisors (1661800909399).

21110022212201 is a wasteful number, since it uses less digits than its factorization.

21110022212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710931935.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21110022212201 its reverse (10221222001112), we get a palindrome (31331244213313).

The spelling of 21110022212201 in words is "twenty-one trillion, one hundred ten billion, twenty-two million, two hundred twelve thousand, two hundred one".