442221545122219 has 2 divisors, whose sum is σ = 442221545122220. Its totient is φ = 442221545122218.

The previous prime is 442221545122171. The next prime is 442221545122283. The reversal of 442221545122219 is 912221545122244.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442221545122219 is a prime.

It is a super-2 number, since 2×442221545122219² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442221545122619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221110772561109 + 221110772561110.

It is an arithmetic number, because the mean of its divisors is an integer number (221110772561110).

Almost surely, 2^{442221545122219} is an apocalyptic number.

442221545122219 is a deficient number, since it is larger than the sum of its proper divisors (1).

442221545122219 is an equidigital number, since it uses as much as digits as its factorization.

442221545122219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 46.

The spelling of 442221545122219 in words is "four hundred forty-two trillion, two hundred twenty-one billion, five hundred forty-five million, one hundred twenty-two thousand, two hundred nineteen".