1030303011221 has 16 divisors (see below), whose sum is σ = 1148474282688. Its totient is φ = 916318166400.

The previous prime is 1030303011191. The next prime is 1030303011233. The reversal of 1030303011221 is 1221103030301.

It is a cyclic number.

It is not a de Polignac number, because 1030303011221 - 2³⁸ = 755425104277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1030303011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030303011821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2344160 + ... + 2748761.

It is an arithmetic number, because the mean of its divisors is an integer number (71779642668).

Almost surely, 2^{1030303011221} is an apocalyptic number.

1030303011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1030303011221 is a deficient number, since it is larger than the sum of its proper divisors (118171271467).

1030303011221 is a wasteful number, since it uses less digits than its factorization.

1030303011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093332.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1030303011221 its reverse (1221103030301), we get a palindrome (2251406041522).

It can be divided in two parts, 103030301 and 1221, that multiplied together give a palindrome (125799997521).

The spelling of 1030303011221 in words is "one trillion, thirty billion, three hundred three million, eleven thousand, two hundred twenty-one".