221332013101 has 2 divisors, whose sum is σ = 221332013102. Its totient is φ = 221332013100.

The previous prime is 221332013081. The next prime is 221332013113. The reversal of 221332013101 is 101310233122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160841102500 + 60490910601 = 401050^2 + 245949^2 .

It is a cyclic number.

It is not a de Polignac number, because 221332013101 - 2¹³ = 221332004909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221332013131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110666006550 + 110666006551.

It is an arithmetic number, because the mean of its divisors is an integer number (110666006551).

Almost surely, 2^221332013101 is an apocalyptic number.

It is an amenable number.

221332013101 is a deficient number, since it is larger than the sum of its proper divisors (1).

221332013101 is an equidigital number, since it uses as much as digits as its factorization.

221332013101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221332013101 its reverse (101310233122), we get a palindrome (322642246223).

The spelling of 221332013101 in words is "two hundred twenty-one billion, three hundred thirty-two million, thirteen thousand, one hundred one".