221413244213226 has 64 divisors (see below), whose sum is σ = 477760256225280. Its totient is φ = 68002921103040.

The previous prime is 221413244213201. The next prime is 221413244213311. The reversal of 221413244213226 is 622312442314122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128751321 + ... + 130459683.

It is an arithmetic number, because the mean of its divisors is an integer number (7465004003520).

Almost surely, 2^{221413244213226} is an apocalyptic number.

221413244213226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

221413244213226 is an abundant number, since it is smaller than the sum of its proper divisors (256347012012054).

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

221413244213226 is a wasteful number, since it uses less digits than its factorization.

221413244213226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711411.

The product of its digits is 221184, while the sum is 39.

Adding to 221413244213226 its reverse (622312442314122), we get a palindrome (843725686527348).

The spelling of 221413244213226 in words is "two hundred twenty-one trillion, four hundred thirteen billion, two hundred forty-four million, two hundred thirteen thousand, two hundred twenty-six".