222110000212221 has 48 divisors (see below), whose sum is σ = 354106338655680. Its totient is φ = 133036363138560.

The previous prime is 222110000212207. The next prime is 222110000212231. The reversal of 222110000212221 is 122212000011222.

It is a happy number.

222110000212221 is a `hidden beast` number, since 2 + 221 + 10 + 0 + 0 + 0 + 212 + 221 = 666.

It is not a de Polignac number, because 222110000212221 - 2⁵ = 222110000212189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222110000212194 and 222110000212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222110000212231) 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, 24726606 + ... + 32490383.

It is an arithmetic number, because the mean of its divisors is an integer number (7377215388660).

Almost surely, 2^{222110000212221} is an apocalyptic number.

It is an amenable number.

222110000212221 is a deficient number, since it is larger than the sum of its proper divisors (131996338443459).

222110000212221 is a wasteful number, since it uses less digits than its factorization.

222110000212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57217466 (or 57217463 counting only the distinct ones).

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

Adding to 222110000212221 its reverse (122212000011222), we get a palindrome (344322000223443).

The spelling of 222110000212221 in words is "two hundred twenty-two trillion, one hundred ten billion, two hundred twelve thousand, two hundred twenty-one".