221120222021093 has 2 divisors, whose sum is σ = 221120222021094. Its totient is φ = 221120222021092.

The previous prime is 221120222021089. The next prime is 221120222021123. The reversal of 221120222021093 is 390120222021122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197959469017249 + 23160753003844 = 14069807^2 + 4812562^2 .

It is a cyclic number.

It is not a de Polignac number, because 221120222021093 - 2² = 221120222021089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221120222021053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110560111010546 + 110560111010547.

It is an arithmetic number, because the mean of its divisors is an integer number (110560111010547).

Almost surely, 2^{221120222021093} is an apocalyptic number.

It is an amenable number.

221120222021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

221120222021093 is an equidigital number, since it uses as much as digits as its factorization.

221120222021093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 221120222021093 its sum of digits (29), we get a palindrome (221120222021122).

The spelling of 221120222021093 in words is "two hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, twenty-one thousand, ninety-three".