1030033100221 has 4 divisors (see below), whose sum is σ = 1030112340444. Its totient is φ = 1029953860000.

The previous prime is 1030033100177. The next prime is 1030033100279. The reversal of 1030033100221 is 1220013300301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28262316996 + 1001770783225 = 168114^2 + 1000885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030033100221 - 2³¹ = 1027885616573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030033100195 and 1030033100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030003100221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39600610 + ... + 39626611.

It is an arithmetic number, because the mean of its divisors is an integer number (257528085111).

Almost surely, 2^{1030033100221} is an apocalyptic number.

It is an amenable number.

1030033100221 is a deficient number, since it is larger than the sum of its proper divisors (79240223).

1030033100221 is an equidigital number, since it uses as much as digits as its factorization.

1030033100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79240222.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1030033100221 its reverse (1220013300301), we get a palindrome (2250046400522).

The spelling of 1030033100221 in words is "one trillion, thirty billion, thirty-three million, one hundred thousand, two hundred twenty-one".