84227220500 has 36 divisors (see below), whose sum is σ = 183966423732. Its totient is φ = 33688292400.

The previous prime is 84227220439. The next prime is 84227220523. The reversal of 84227220500 is 502272248.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 2695271056 + 81531949444 = 51916^2 + 285538^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6483011 + ... + 6495989.

It is an arithmetic number, because the mean of its divisors is an integer number (5110178437).

Almost surely, 2^84227220500 is an apocalyptic number.

It is an amenable number.

84227220500 is an abundant number, since it is smaller than the sum of its proper divisors (99739203232).

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

84227220500 is an frugal number, since it uses more digits than its factorization.

84227220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25977 (or 12986 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

Adding to 84227220500 its reverse (502272248), we get a palindrome (84729492748).

The spelling of 84227220500 in words is "eighty-four billion, two hundred twenty-seven million, two hundred twenty thousand, five hundred".