220220010212221 has 16 divisors (see below), whose sum is σ = 226203323903424. Its totient is φ = 214316086875264.

The previous prime is 220220010212113. The next prime is 220220010212273. The reversal of 220220010212221 is 122212010022022.

It is a cyclic number.

It is not a de Polignac number, because 220220010212221 - 2¹⁹ = 220220009687933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220010212281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394201531 + ... + 394759783.

It is an arithmetic number, because the mean of its divisors is an integer number (14137707743964).

Almost surely, 2^{220220010212221} is an apocalyptic number.

It is an amenable number.

220220010212221 is a deficient number, since it is larger than the sum of its proper divisors (5983313691203).

220220010212221 is an equidigital number, since it uses as much as digits as its factorization.

220220010212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629340.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220220010212221 its reverse (122212010022022), we get a palindrome (342432020234243).

The spelling of 220220010212221 in words is "two hundred twenty trillion, two hundred twenty billion, ten million, two hundred twelve thousand, two hundred twenty-one".