221440214442 has 8 divisors (see below), whose sum is σ = 442880428896. Its totient is φ = 73813404812.

The previous prime is 221440214423. The next prime is 221440214467. The reversal of 221440214442 is 244412044122.

It is a sphenic number, since it is the product of 3 distinct primes.

221440214442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18453351198 + ... + 18453351209.

It is an arithmetic number, because the mean of its divisors is an integer number (55360053612).

Almost surely, 2^221440214442 is an apocalyptic number.

221440214442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221440214442 is a wasteful number, since it uses less digits than its factorization.

221440214442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36906702412.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 221440214442 its reverse (244412044122), we get a palindrome (465852258564).

The spelling of 221440214442 in words is "two hundred twenty-one billion, four hundred forty million, two hundred fourteen thousand, four hundred forty-two".