442021556011 has 8 divisors (see below), whose sum is σ = 509145190400. Its totient is φ = 375892346088.

The previous prime is 442021555861. The next prime is 442021556071. The reversal of 442021556011 is 110655120244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442021556011 - 2¹⁷ = 442021424939 is a prime.

It is a super-2 number, since 2×442021556011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442021556071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248605161 + ... + 248606938.

It is an arithmetic number, because the mean of its divisors is an integer number (63643148800).

Almost surely, 2^442021556011 is an apocalyptic number.

442021556011 is a deficient number, since it is larger than the sum of its proper divisors (67123634389).

442021556011 is a wasteful number, since it uses less digits than its factorization.

442021556011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497212233.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 442021556011 its reverse (110655120244), we get a palindrome (552676676255).

The spelling of 442021556011 in words is "four hundred forty-two billion, twenty-one million, five hundred fifty-six thousand, eleven".