2212302221 has 12 divisors (see below), whose sum is σ = 2337096672. Its totient is φ = 2093864904.

The previous prime is 2212302217. The next prime is 2212302251. The reversal of 2212302221 is 1222032122.

2212302221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2212302221 - 2² = 2212302217 is a prime.

It is a super-2 number, since 2×2212302221² = 9788562234083065682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2212302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212302251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491246 + ... + 495728.

It is an arithmetic number, because the mean of its divisors is an integer number (194758056).

Almost surely, 2^2212302221 is an apocalyptic number.

It is an amenable number.

2212302221 is a deficient number, since it is larger than the sum of its proper divisors (124794451).

2212302221 is a wasteful number, since it uses less digits than its factorization.

2212302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2212302221 is about 47035.1168915312. The cubic root of 2212302221 is about 1303.0112092524.

Adding to 2212302221 its reverse (1222032122), we get a palindrome (3434334343).

The spelling of 2212302221 in words is "two billion, two hundred twelve million, three hundred two thousand, two hundred twenty-one".