1222202223773 has 2 divisors, whose sum is σ = 1222202223774. Its totient is φ = 1222202223772.

The previous prime is 1222202223761. The next prime is 1222202223787. The reversal of 1222202223773 is 3773222022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070755161529 + 151447062244 = 1034773^2 + 389162^2 .

It is an emirp because it is prime and its reverse (3773222022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222202223773 - 2⁶ = 1222202223709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222202223733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611101111886 + 611101111887.

It is an arithmetic number, because the mean of its divisors is an integer number (611101111887).

Almost surely, 2^{1222202223773} is an apocalyptic number.

It is an amenable number.

1222202223773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222202223773 is an equidigital number, since it uses as much as digits as its factorization.

1222202223773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 1222202223773 its reverse (3773222022221), we get a palindrome (4995424245994).

The spelling of 1222202223773 in words is "one trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty-three thousand, seven hundred seventy-three".