221122001101 has 2 divisors, whose sum is σ = 221122001102. Its totient is φ = 221122001100.

The previous prime is 221122001071. The next prime is 221122001119. The reversal of 221122001101 is 101100221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220830445476 + 291555625 = 469926^2 + 17075^2 .

It is a cyclic number.

It is not a de Polignac number, because 221122001101 - 2¹⁹ = 221121476813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122001131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561000550 + 110561000551.

It is an arithmetic number, because the mean of its divisors is an integer number (110561000551).

Almost surely, 2^221122001101 is an apocalyptic number.

It is an amenable number.

221122001101 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122001101 is an equidigital number, since it uses as much as digits as its factorization.

221122001101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221122001101 its reverse (101100221122), we get a palindrome (322222222223).

The spelling of 221122001101 in words is "two hundred twenty-one billion, one hundred twenty-two million, one thousand, one hundred one".