1113203022221 has 2 divisors, whose sum is σ = 1113203022222. Its totient is φ = 1113203022220.

The previous prime is 1113203022149. The next prime is 1113203022229. The reversal of 1113203022221 is 1222203023111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 888332640196 + 224870382025 = 942514^2 + 474205^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113203022221 - 2¹⁰ = 1113203021197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113203022193 and 1113203022202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113203022229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556601511110 + 556601511111.

It is an arithmetic number, because the mean of its divisors is an integer number (556601511111).

Almost surely, 2^{1113203022221} is an apocalyptic number.

It is an amenable number.

1113203022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113203022221 is an equidigital number, since it uses as much as digits as its factorization.

1113203022221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1113203022221 its reverse (1222203023111), we get a palindrome (2335406045332).

The spelling of 1113203022221 in words is "one trillion, one hundred thirteen billion, two hundred three million, twenty-two thousand, two hundred twenty-one".