221440214122 has 8 divisors (see below), whose sum is σ = 332162381700. Its totient is φ = 110719420224.

The previous prime is 221440214119. The next prime is 221440214173. The reversal of 221440214122 is 221412044122.

It can be written as a sum of positive squares in 2 ways, for example, as 216579475161 + 4860738961 = 465381^2 + 69719^2 .

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

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, 302754 + ... + 731122.

Almost surely, 2^221440214122 is an apocalyptic number.

221440214122 is a deficient number, since it is larger than the sum of its proper divisors (110722167578).

221440214122 is a wasteful number, since it uses less digits than its factorization.

221440214122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686840.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221440214122 its reverse (221412044122), we get a palindrome (442852258244).

The spelling of 221440214122 in words is "two hundred twenty-one billion, four hundred forty million, two hundred fourteen thousand, one hundred twenty-two".