220444120020243 has 16 divisors (see below), whose sum is σ = 336014794574336. Its totient is φ = 125930589200640.

The previous prime is 220444120020161. The next prime is 220444120020277. The reversal of 220444120020243 is 342020021444022.

It is a happy number.

It is not a de Polignac number, because 220444120020243 - 2¹⁷ = 220444119889171 is a prime.

It is a super-2 number, since 2×220444120020243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220444120020243.

It is not an unprimeable number, because it can be changed into a prime (220444120020043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561568671 + ... + 1561709832.

It is an arithmetic number, because the mean of its divisors is an integer number (21000924660896).

Almost surely, 2^{220444120020243} is an apocalyptic number.

220444120020243 is a deficient number, since it is larger than the sum of its proper divisors (115570674554093).

220444120020243 is a wasteful number, since it uses less digits than its factorization.

220444120020243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123281874.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 220444120020243 its reverse (342020021444022), we get a palindrome (562464141464265).

The spelling of 220444120020243 in words is "two hundred twenty trillion, four hundred forty-four billion, one hundred twenty million, twenty thousand, two hundred forty-three".