222139684404 has 144 divisors (see below), whose sum is σ = 645067463040. Its totient is φ = 63797310720.

The previous prime is 222139684391. The next prime is 222139684409. The reversal of 222139684404 is 404486931222.

222139684404 is a `hidden beast` number, since 22 + 213 + 9 + 6 + 8 + 4 + 404 = 666.

222139684404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222139684404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222139684409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880894 + ... + 1104650.

It is an arithmetic number, because the mean of its divisors is an integer number (4479635160).

Almost surely, 2^222139684404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222139684404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322533731520).

222139684404 is an abundant number, since it is smaller than the sum of its proper divisors (422927778636).

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

222139684404 is a wasteful number, since it uses less digits than its factorization.

222139684404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223910 (or 223905 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 222139684404 in words is "two hundred twenty-two billion, one hundred thirty-nine million, six hundred eighty-four thousand, four hundred four".