221214341606 has 32 divisors (see below), whose sum is σ = 341615589696. Its totient is φ = 107387280000.

The previous prime is 221214341599. The next prime is 221214341609. The reversal of 221214341606 is 606143412122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221214341609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24737096 + ... + 24746036.

It is an arithmetic number, because the mean of its divisors is an integer number (10675487178).

Almost surely, 2^221214341606 is an apocalyptic number.

221214341606 is a deficient number, since it is larger than the sum of its proper divisors (120401248090).

221214341606 is a wasteful number, since it uses less digits than its factorization.

221214341606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 221214341606 its reverse (606143412122), we get a palindrome (827357753728).

The spelling of 221214341606 in words is "two hundred twenty-one billion, two hundred fourteen million, three hundred forty-one thousand, six hundred six".