1220212112233 has 2 divisors, whose sum is σ = 1220212112234. Its totient is φ = 1220212112232.

The previous prime is 1220212112221. The next prime is 1220212112239. The reversal of 1220212112233 is 3322112120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693350986329 + 526861125904 = 832677^2 + 725852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220212112233 - 2⁵ = 1220212112201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220212112239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610106056116 + 610106056117.

It is an arithmetic number, because the mean of its divisors is an integer number (610106056117).

Almost surely, 2^{1220212112233} is an apocalyptic number.

It is an amenable number.

1220212112233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220212112233 is an equidigital number, since it uses as much as digits as its factorization.

1220212112233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1220212112233 its reverse (3322112120221), we get a palindrome (4542324232454).

The spelling of 1220212112233 in words is "one trillion, two hundred twenty billion, two hundred twelve million, one hundred twelve thousand, two hundred thirty-three".