220244342212221 has 32 divisors (see below), whose sum is σ = 295977065472000. Its totient is φ = 145675029321600.

The previous prime is 220244342212123. The next prime is 220244342212229. The reversal of 220244342212221 is 122212243442022.

It is a happy number.

It is not a de Polignac number, because 220244342212221 - 2¹⁸ = 220244341950077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220244342212229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448946161 + ... + 449436473.

It is an arithmetic number, because the mean of its divisors is an integer number (9249283296000).

Almost surely, 2^{220244342212221} is an apocalyptic number.

It is an amenable number.

220244342212221 is a deficient number, since it is larger than the sum of its proper divisors (75732723259779).

220244342212221 is a wasteful number, since it uses less digits than its factorization.

220244342212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492577.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 220244342212221 its reverse (122212243442022), we get a palindrome (342456585654243).

The spelling of 220244342212221 in words is "two hundred twenty trillion, two hundred forty-four billion, three hundred forty-two million, two hundred twelve thousand, two hundred twenty-one".