2212200221 has 16 divisors (see below), whose sum is σ = 2804820480. Its totient is φ = 1694572080.

The previous prime is 2212200217. The next prime is 2212200241. The reversal of 2212200221 is 1220022122.

It is a cyclic number.

It is not a de Polignac number, because 2212200221 - 2² = 2212200217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212200196 and 2212200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212200241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238931 + ... + 248016.

It is an arithmetic number, because the mean of its divisors is an integer number (175301280).

Almost surely, 2^2212200221 is an apocalyptic number.

It is an amenable number.

2212200221 is a deficient number, since it is larger than the sum of its proper divisors (592620259).

2212200221 is a wasteful number, since it uses less digits than its factorization.

2212200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487024.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2212200221 is about 47034.0325828011. The cubic root of 2212200221 is about 1302.9911834794.

Adding to 2212200221 its reverse (1220022122), we get a palindrome (3432222343).

It can be divided in two parts, 22 and 12200221, that multiplied together give a palindrome (268404862).

The spelling of 2212200221 in words is "two billion, two hundred twelve million, two hundred thousand, two hundred twenty-one".