1220220220213 has 2 divisors, whose sum is σ = 1220220220214. Its totient is φ = 1220220220212.

The previous prime is 1220220220211. The next prime is 1220220220249. The reversal of 1220220220213 is 3120220220221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125844079364 + 94376140849 = 1061058^2 + 307207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220220220213 - 2¹ = 1220220220211 is a prime.

Together with 1220220220211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220220220211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110110106 + 610110110107.

It is an arithmetic number, because the mean of its divisors is an integer number (610110110107).

Almost surely, 2^{1220220220213} is an apocalyptic number.

It is an amenable number.

1220220220213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220220220213 is an equidigital number, since it uses as much as digits as its factorization.

1220220220213 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 19.

Adding to 1220220220213 its reverse (3120220220221), we get a palindrome (4340440440434).

The spelling of 1220220220213 in words is "one trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred thirteen".