2222021213 has 2 divisors, whose sum is σ = 2222021214. Its totient is φ = 2222021212.

The previous prime is 2222021203. The next prime is 2222021233. The reversal of 2222021213 is 3121202222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2047834009 + 174187204 = 45253^2 + 13198^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222021213 - 2¹⁸ = 2221759069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222021191 and 2222021200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222021203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111010606 + 1111010607.

It is an arithmetic number, because the mean of its divisors is an integer number (1111010607).

Almost surely, 2^2222021213 is an apocalyptic number.

It is an amenable number.

2222021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222021213 is an equidigital number, since it uses as much as digits as its factorization.

2222021213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2222021213 is about 47138.3200061267. The cubic root of 2222021213 is about 1304.9165329782.

Adding to 2222021213 its reverse (3121202222), we get a palindrome (5343223435).

The spelling of 2222021213 in words is "two billion, two hundred twenty-two million, twenty-one thousand, two hundred thirteen".