2112200221 has 8 divisors (see below), whose sum is σ = 2189700864. Its totient is φ = 2035284960.

The previous prime is 2112200219. The next prime is 2112200273. The reversal of 2112200221 is 1220022112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112200221 - 2¹ = 2112200219 is a prime.

It is a super-2 number, since 2×2112200221² = 8922779547184897682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138991 + ... + 153436.

It is an arithmetic number, because the mean of its divisors is an integer number (273712608).

Almost surely, 2^2112200221 is an apocalyptic number.

It is an amenable number.

2112200221 is a deficient number, since it is larger than the sum of its proper divisors (77500643).

2112200221 is a wasteful number, since it uses less digits than its factorization.

2112200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292691.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112200221 is about 45958.6794958254. The cubic root of 2112200221 is about 1283.0542746396.

Adding to 2112200221 its reverse (1220022112), we get a palindrome (3332222333).

The spelling of 2112200221 in words is "two billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".