2122212010221 has 32 divisors (see below), whose sum is σ = 3314839424000. Its totient is φ = 1338178888944.

The previous prime is 2122212010169. The next prime is 2122212010231. The reversal of 2122212010221 is 1220102122212.

It is a happy number.

2122212010221 is a `hidden beast` number, since 21 + 2 + 221 + 201 + 0 + 221 = 666.

It is not a de Polignac number, because 2122212010221 - 2¹¹ = 2122212008173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122212010194 and 2122212010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122212010231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3024025 + ... + 3659118.

It is an arithmetic number, because the mean of its divisors is an integer number (103588732000).

Almost surely, 2^{2122212010221} is an apocalyptic number.

It is an amenable number.

2122212010221 is a deficient number, since it is larger than the sum of its proper divisors (1192627413779).

2122212010221 is a wasteful number, since it uses less digits than its factorization.

2122212010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683790 (or 6683784 counting only the distinct ones).

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

Adding to 2122212010221 its reverse (1220102122212), we get a palindrome (3342314132433).

The spelling of 2122212010221 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, ten thousand, two hundred twenty-one".