2210112212121 has 96 divisors (see below), whose sum is σ = 3772442419200. Its totient is φ = 1231872560640.

The previous prime is 2210112212083. The next prime is 2210112212171. The reversal of 2210112212121 is 1212122110122.

2210112212121 is a `hidden beast` number, since 221 + 0 + 11 + 221 + 212 + 1 = 666.

It is not a de Polignac number, because 2210112212121 - 2²³ = 2210103823513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2210112212094 and 2210112212103.

It is not an unprimeable number, because it can be changed into a prime (2210112212171) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16515960 + ... + 16649238.

It is an arithmetic number, because the mean of its divisors is an integer number (39296275200).

Almost surely, 2^{2210112212121} is an apocalyptic number.

It is an amenable number.

2210112212121 is a deficient number, since it is larger than the sum of its proper divisors (1562330207079).

2210112212121 is a wasteful number, since it uses less digits than its factorization.

2210112212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133539 (or 133536 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2210112212121 its reverse (1212122110122), we get a palindrome (3422234322243).

The spelling of 2210112212121 in words is "two trillion, two hundred ten billion, one hundred twelve million, two hundred twelve thousand, one hundred twenty-one".