2110001002221 has 64 divisors (see below), whose sum is σ = 3545089044480. Its totient is φ = 1088402918400.

The previous prime is 2110001002199. The next prime is 2110001002231. The reversal of 2110001002221 is 1222001000112.

It is not a de Polignac number, because 2110001002221 - 2⁹ = 2110001001709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110001002197 and 2110001002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110001002231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 888450 + ... + 2238156.

It is an arithmetic number, because the mean of its divisors is an integer number (55392016320).

Almost surely, 2^{2110001002221} is an apocalyptic number.

2110001002221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2110001002221 is a deficient number, since it is larger than the sum of its proper divisors (1435088042259).

2110001002221 is a wasteful number, since it uses less digits than its factorization.

2110001002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349914.

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

Adding to 2110001002221 its reverse (1222001000112), we get a palindrome (3332002002333).

The spelling of 2110001002221 in words is "two trillion, one hundred ten billion, one million, two thousand, two hundred twenty-one".