2110100122221 has 64 divisors (see below), whose sum is σ = 3558594816000. Its totient is φ = 1082244208896.

The previous prime is 2110100122157. The next prime is 2110100122223. The reversal of 2110100122221 is 1222210010112.

It is not a de Polignac number, because 2110100122221 - 2⁶ = 2110100122157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110100122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110100122223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15883330 + ... + 16015628.

It is an arithmetic number, because the mean of its divisors is an integer number (55603044000).

Almost surely, 2^{2110100122221} is an apocalyptic number.

2110100122221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2110100122221 is a deficient number, since it is larger than the sum of its proper divisors (1448494693779).

2110100122221 is a wasteful number, since it uses less digits than its factorization.

2110100122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133938.

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

Adding to 2110100122221 its reverse (1222210010112), we get a palindrome (3332310132333).

The spelling of 2110100122221 in words is "two trillion, one hundred ten billion, one hundred million, one hundred twenty-two thousand, two hundred twenty-one".