221233332101 has 2 divisors, whose sum is σ = 221233332102. Its totient is φ = 221233332100.

The previous prime is 221233332079. The next prime is 221233332181. The reversal of 221233332101 is 101233332122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171871601476 + 49361730625 = 414574^2 + 222175^2 .

It is a cyclic number.

It is not a de Polignac number, because 221233332101 - 2¹⁴ = 221233315717 is a prime.

It is a super-2 number, since 2×221233332101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221233332181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616666050 + 110616666051.

It is an arithmetic number, because the mean of its divisors is an integer number (110616666051).

Almost surely, 2^221233332101 is an apocalyptic number.

It is an amenable number.

221233332101 is a deficient number, since it is larger than the sum of its proper divisors (1).

221233332101 is an equidigital number, since it uses as much as digits as its factorization.

221233332101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221233332101 its reverse (101233332122), we get a palindrome (322466664223).

The spelling of 221233332101 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred thirty-two thousand, one hundred one".