2103222030521 has 2 divisors, whose sum is σ = 2103222030522. Its totient is φ = 2103222030520.

The previous prime is 2103222030509. The next prime is 2103222030529. The reversal of 2103222030521 is 1250302223012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2100937190521 + 2284840000 = 1449461^2 + 47800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103222030521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103222030529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051611015260 + 1051611015261.

It is an arithmetic number, because the mean of its divisors is an integer number (1051611015261).

Almost surely, 2^{2103222030521} is an apocalyptic number.

It is an amenable number.

2103222030521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103222030521 is an equidigital number, since it uses as much as digits as its factorization.

2103222030521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 2103222030521 its reverse (1250302223012), we get a palindrome (3353524253533).

The spelling of 2103222030521 in words is "two trillion, one hundred three billion, two hundred twenty-two million, thirty thousand, five hundred twenty-one".