220221001123 has 2 divisors, whose sum is σ = 220221001124. Its totient is φ = 220221001122.

The previous prime is 220221001109. The next prime is 220221001127. The reversal of 220221001123 is 321100122022.

It is a happy number.

220221001123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220221001123 is a prime.

It is a super-2 number, since 2×220221001123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220221001097 and 220221001106.

It is not a weakly prime, because it can be changed into another prime (220221001127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110110500561 + 110110500562.

It is an arithmetic number, because the mean of its divisors is an integer number (110110500562).

Almost surely, 2^220221001123 is an apocalyptic number.

220221001123 is a deficient number, since it is larger than the sum of its proper divisors (1).

220221001123 is an equidigital number, since it uses as much as digits as its factorization.

220221001123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 220221001123 its reverse (321100122022), we get a palindrome (541321123145).

The spelling of 220221001123 in words is "two hundred twenty billion, two hundred twenty-one million, one thousand, one hundred twenty-three".