445431124505222 has 4 divisors (see below), whose sum is σ = 668146686757836. Its totient is φ = 222715562252610.

The previous prime is 445431124505221. The next prime is 445431124505231. The reversal of 445431124505222 is 222505421134544.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445431124505221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111357781126304 + ... + 111357781126307.

It is an arithmetic number, because the mean of its divisors is an integer number (167036671689459).

Almost surely, 2^{445431124505222} is an apocalyptic number.

445431124505222 is a deficient number, since it is larger than the sum of its proper divisors (222715562252614).

445431124505222 is a wasteful number, since it uses less digits than its factorization.

445431124505222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222715562252613.

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 445431124505222 its reverse (222505421134544), we get a palindrome (667936545639766).

The spelling of 445431124505222 in words is "four hundred forty-five trillion, four hundred thirty-one billion, one hundred twenty-four million, five hundred five thousand, two hundred twenty-two".