2110022122221 has 48 divisors (see below), whose sum is σ = 3296859121920. Its totient is φ = 1292709559680.

The previous prime is 2110022122211. The next prime is 2110022122249. The reversal of 2110022122221 is 1222212200112.

It is a happy number.

It is not a de Polignac number, because 2110022122221 - 2⁷ = 2110022122093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110022122194 and 2110022122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110022122211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27419020 + ... + 27495866.

It is an arithmetic number, because the mean of its divisors is an integer number (68684565040).

Almost surely, 2^{2110022122221} is an apocalyptic number.

It is an amenable number.

2110022122221 is a deficient number, since it is larger than the sum of its proper divisors (1186836999699).

2110022122221 is a wasteful number, since it uses less digits than its factorization.

2110022122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77906 (or 77903 counting only the distinct ones).

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

Adding to 2110022122221 its reverse (1222212200112), we get a palindrome (3332234322333).

The spelling of 2110022122221 in words is "two trillion, one hundred ten billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".