221110123023061 has 2 divisors, whose sum is σ = 221110123023062. Its totient is φ = 221110123023060.

The previous prime is 221110123023047. The next prime is 221110123023073. The reversal of 221110123023061 is 160320321011122.

221110123023061 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 can be written as a sum of positive squares in only one way, i.e., 214910615628900 + 6199507394161 = 14659830^2 + 2489881^2 .

It is a cyclic number.

It is not a de Polignac number, because 221110123023061 - 2¹⁵ = 221110122990293 is a prime.

It is a super-3 number, since 3×221110123023061³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221110123023161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110555061511530 + 110555061511531.

It is an arithmetic number, because the mean of its divisors is an integer number (110555061511531).

Almost surely, 2^{221110123023061} is an apocalyptic number.

It is an amenable number.

221110123023061 is a deficient number, since it is larger than the sum of its proper divisors (1).

221110123023061 is an equidigital number, since it uses as much as digits as its factorization.

221110123023061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 221110123023061 its reverse (160320321011122), we get a palindrome (381430444034183).

The spelling of 221110123023061 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred twenty-three million, twenty-three thousand, sixty-one".