442221545122245 has 96 divisors (see below), whose sum is σ = 897414308743680. Its totient is φ = 197221540884480.

The previous prime is 442221545122219. The next prime is 442221545122283. The reversal of 442221545122245 is 542221545122244.

442221545122245 is a `hidden beast` number, since 4 + 4 + 2 + 2 + 21 + 54 + 512 + 22 + 45 = 666.

It is not a de Polignac number, because 442221545122245 - 2²⁵ = 442221511567813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 442221545122245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 424215021 + ... + 425256189.

It is an arithmetic number, because the mean of its divisors is an integer number (9348065716080).

Almost surely, 2^{442221545122245} is an apocalyptic number.

442221545122245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

442221545122245 is an abundant number, since it is smaller than the sum of its proper divisors (455192763621435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442221545122245 is a wasteful number, since it uses less digits than its factorization.

442221545122245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074115 (or 1074112 counting only the distinct ones).

The product of its digits is 2048000, while the sum is 45.

Subtracting 442221545122245 from its reverse (542221545122244), we obtain a palindrome (99999999999999).

The spelling of 442221545122245 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 forty-five".