1030113221221 has 4 divisors (see below), whose sum is σ = 1177272252832. Its totient is φ = 882954189612.

The previous prime is 1030113221209. The next prime is 1030113221237. The reversal of 1030113221221 is 1221223110301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1030113221221 - 2²⁵ = 1030079666789 is a prime.

It is a super-2 number, since 2×1030113221221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030113221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73579515795 + ... + 73579515808.

It is an arithmetic number, because the mean of its divisors is an integer number (294318063208).

Almost surely, 2^{1030113221221} is an apocalyptic number.

It is an amenable number.

1030113221221 is a deficient number, since it is larger than the sum of its proper divisors (147159031611).

1030113221221 is an equidigital number, since it uses as much as digits as its factorization.

1030113221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147159031610.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1030113221221 its reverse (1221223110301), we get a palindrome (2251336331522).

The spelling of 1030113221221 in words is "one trillion, thirty billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-one".