1220222120213 has 2 divisors, whose sum is σ = 1220222120214. Its totient is φ = 1220222120212.

The previous prime is 1220222120179. The next prime is 1220222120219. The reversal of 1220222120213 is 3120212220221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196577829924 + 23644290289 = 1093882^2 + 153767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220222120213 - 2⁸ = 1220222119957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220222120219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111060106 + 610111060107.

It is an arithmetic number, because the mean of its divisors is an integer number (610111060107).

Almost surely, 2^{1220222120213} is an apocalyptic number.

It is an amenable number.

1220222120213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222120213 is an equidigital number, since it uses as much as digits as its factorization.

1220222120213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1220222120213 its reverse (3120212220221), we get a palindrome (4340434340434).

The spelling of 1220222120213 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twenty thousand, two hundred thirteen".