442221545122619 has 2 divisors, whose sum is σ = 442221545122620. Its totient is φ = 442221545122618.

The previous prime is 442221545122607. The next prime is 442221545122673. The reversal of 442221545122619 is 916221545122244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442221545122619 - 2⁴ = 442221545122603 is a prime.

It is a super-2 number, since 2×442221545122619² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442221545122219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221110772561309 + 221110772561310.

It is an arithmetic number, because the mean of its divisors is an integer number (221110772561310).

Almost surely, 2^{442221545122619} is an apocalyptic number.

442221545122619 is a deficient number, since it is larger than the sum of its proper divisors (1).

442221545122619 is an equidigital number, since it uses as much as digits as its factorization.

442221545122619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2764800, while the sum is 50.

The spelling of 442221545122619 in words is "four hundred forty-two trillion, two hundred twenty-one billion, five hundred forty-five million, one hundred twenty-two thousand, six hundred nineteen".