221404360006 has 32 divisors (see below), whose sum is σ = 347841957888. Its totient is φ = 105493782240.

The previous prime is 221404359923. The next prime is 221404360013. The reversal of 221404360006 is 600063404122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14070115 + ... + 14085841.

It is an arithmetic number, because the mean of its divisors is an integer number (10870061184).

Almost surely, 2^221404360006 is an apocalyptic number.

221404360006 is a deficient number, since it is larger than the sum of its proper divisors (126437597882).

221404360006 is a wasteful number, since it uses less digits than its factorization.

221404360006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16876.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 221404360006 its reverse (600063404122), we get a palindrome (821467764128).

The spelling of 221404360006 in words is "two hundred twenty-one billion, four hundred four million, three hundred sixty thousand, six".