1102321205221 has 2 divisors, whose sum is σ = 1102321205222. Its totient is φ = 1102321205220.

The previous prime is 1102321205177. The next prime is 1102321205287. The reversal of 1102321205221 is 1225021232011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722389504225 + 379931700996 = 849935^2 + 616386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102321205221 - 2³⁵ = 1067961466853 is a prime.

It is a super-2 number, since 2×1102321205221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1102321205192 and 1102321205201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102321205021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551160602610 + 551160602611.

It is an arithmetic number, because the mean of its divisors is an integer number (551160602611).

Almost surely, 2^{1102321205221} is an apocalyptic number.

It is an amenable number.

1102321205221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102321205221 is an equidigital number, since it uses as much as digits as its factorization.

1102321205221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 1102321205221 its reverse (1225021232011), we get a palindrome (2327342437232).

The spelling of 1102321205221 in words is "one trillion, one hundred two billion, three hundred twenty-one million, two hundred five thousand, two hundred twenty-one".