221016412822 has 8 divisors (see below), whose sum is σ = 332061938136. Its totient is φ = 110329100112.

The previous prime is 221016412817. The next prime is 221016412823. The reversal of 221016412822 is 228214610122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221016412823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89551608 + ... + 89554075.

It is an arithmetic number, because the mean of its divisors is an integer number (41507742267).

Almost surely, 2^221016412822 is an apocalyptic number.

221016412822 is a deficient number, since it is larger than the sum of its proper divisors (111045525314).

221016412822 is a wasteful number, since it uses less digits than its factorization.

221016412822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179106302.

The product of its (nonzero) digits is 6144, while the sum is 31.

The spelling of 221016412822 in words is "two hundred twenty-one billion, sixteen million, four hundred twelve thousand, eight hundred twenty-two".