221842093490562 has 16 divisors (see below), whose sum is σ = 467035986296160. Its totient is φ = 70055397944352.

The previous prime is 221842093490551. The next prime is 221842093490599. The reversal of 221842093490562 is 265094390248122.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 972991638003 + ... + 972991638230.

It is an arithmetic number, because the mean of its divisors is an integer number (29189749143510).

Almost surely, 2^{221842093490562} is an apocalyptic number.

221842093490562 is an abundant number, since it is smaller than the sum of its proper divisors (245193892805598).

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

221842093490562 is a wasteful number, since it uses less digits than its factorization.

221842093490562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945983276257.

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 221842093490562 in words is "two hundred twenty-one trillion, eight hundred forty-two billion, ninety-three million, four hundred ninety thousand, five hundred sixty-two".