2110210222221 has 12 divisors (see below), whose sum is σ = 3146406640000. Its totient is φ = 1361425949640.

The previous prime is 2110210222201. The next prime is 2110210222231. The reversal of 2110210222221 is 1222220120112.

It is a happy number.

2110210222221 is a `hidden beast` number, since 2 + 1 + 10 + 210 + 222 + 221 = 666.

It is not a de Polignac number, because 2110210222221 - 2⁷ = 2110210222093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110210222194 and 2110210222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110210222201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3781738471 + ... + 3781739028.

Almost surely, 2^{2110210222221} is an apocalyptic number.

It is an amenable number.

2110210222221 is a deficient number, since it is larger than the sum of its proper divisors (1036196417779).

2110210222221 is a wasteful number, since it uses less digits than its factorization.

2110210222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563477536 (or 7563477533 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2110210222221 its reverse (1222220120112), we get a palindrome (3332430342333).

The spelling of 2110210222221 in words is "two trillion, one hundred ten billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".