222408619021 has 2 divisors, whose sum is σ = 222408619022. Its totient is φ = 222408619020.

The previous prime is 222408618989. The next prime is 222408619039. The reversal of 222408619021 is 120916804222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134110496521 + 88298122500 = 366211^2 + 297150^2 .

It is a cyclic number.

It is not a de Polignac number, because 222408619021 - 2⁵ = 222408618989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222408619091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111204309510 + 111204309511.

It is an arithmetic number, because the mean of its divisors is an integer number (111204309511).

Almost surely, 2^222408619021 is an apocalyptic number.

It is an amenable number.

222408619021 is a deficient number, since it is larger than the sum of its proper divisors (1).

222408619021 is an equidigital number, since it uses as much as digits as its factorization.

222408619021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 222408619021 in words is "two hundred twenty-two billion, four hundred eight million, six hundred nineteen thousand, twenty-one".