1103002020221 has 2 divisors, whose sum is σ = 1103002020222. Its totient is φ = 1103002020220.

The previous prime is 1103002020187. The next prime is 1103002020251. The reversal of 1103002020221 is 1220202003011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948167640121 + 154834380100 = 973739^2 + 393490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103002020221 - 2¹⁴ = 1103002003837 is a prime.

It is a super-2 number, since 2×1103002020221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103002020196 and 1103002020205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103002020251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551501010110 + 551501010111.

It is an arithmetic number, because the mean of its divisors is an integer number (551501010111).

Almost surely, 2^{1103002020221} is an apocalyptic number.

It is an amenable number.

1103002020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103002020221 is an equidigital number, since it uses as much as digits as its factorization.

1103002020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1103002020221 its reverse (1220202003011), we get a palindrome (2323204023232).

The spelling of 1103002020221 in words is "one trillion, one hundred three billion, two million, twenty thousand, two hundred twenty-one".