1101220233221 has 2 divisors, whose sum is σ = 1101220233222. Its totient is φ = 1101220233220.

The previous prime is 1101220233193. The next prime is 1101220233227. The reversal of 1101220233221 is 1223320221011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994728964321 + 106491268900 = 997361^2 + 326330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101220233221 - 2³⁴ = 1084040364037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101220233193 and 1101220233202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101220233227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550610116610 + 550610116611.

It is an arithmetic number, because the mean of its divisors is an integer number (550610116611).

Almost surely, 2^{1101220233221} is an apocalyptic number.

It is an amenable number.

1101220233221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101220233221 is an equidigital number, since it uses as much as digits as its factorization.

1101220233221 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 1101220233221 its reverse (1223320221011), we get a palindrome (2324540454232).

The spelling of 1101220233221 in words is "one trillion, one hundred one billion, two hundred twenty million, two hundred thirty-three thousand, two hundred twenty-one".