221222043293 has 2 divisors, whose sum is σ = 221222043294. Its totient is φ = 221222043292.

The previous prime is 221222043269. The next prime is 221222043311. The reversal of 221222043293 is 392340222122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217586797444 + 3635245849 = 466462^2 + 60293^2 .

It is a cyclic number.

It is not a de Polignac number, because 221222043293 - 2¹⁰ = 221222042269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221222043223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611021646 + 110611021647.

It is an arithmetic number, because the mean of its divisors is an integer number (110611021647).

Almost surely, 2^221222043293 is an apocalyptic number.

It is an amenable number.

221222043293 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222043293 is an equidigital number, since it uses as much as digits as its factorization.

221222043293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 221222043293 in words is "two hundred twenty-one billion, two hundred twenty-two million, forty-three thousand, two hundred ninety-three".