2221684445204 has 24 divisors (see below), whose sum is σ = 4443819041088. Its totient is φ = 952054015680.

The previous prime is 2221684445173. The next prime is 2221684445231. The reversal of 2221684445204 is 4025444861222.

It is a super-2 number, since 2×2221684445204² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737537 + ... + 4290984.

It is an arithmetic number, because the mean of its divisors is an integer number (185159126712).

Almost surely, 2^{2221684445204} is an apocalyptic number.

It is an amenable number.

2221684445204 is an abundant number, since it is smaller than the sum of its proper divisors (2222134595884).

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

2221684445204 is a wasteful number, since it uses less digits than its factorization.

2221684445204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038415 (or 8038413 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 44.

The spelling of 2221684445204 in words is "two trillion, two hundred twenty-one billion, six hundred eighty-four million, four hundred forty-five thousand, two hundred four".