1030120201221 has 16 divisors (see below), whose sum is σ = 1421197747200. Its totient is φ = 662906138048.

The previous prime is 1030120201151. The next prime is 1030120201247. The reversal of 1030120201221 is 1221020210301.

It is a cyclic number.

It is not a de Polignac number, because 1030120201221 - 2²⁷ = 1029985983493 is a prime.

It is a super-2 number, since 2×1030120201221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030120201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030120201261) 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, 1062501 + ... + 1785818.

It is an arithmetic number, because the mean of its divisors is an integer number (88824859200).

Almost surely, 2^{1030120201221} is an apocalyptic number.

It is an amenable number.

1030120201221 is a deficient number, since it is larger than the sum of its proper divisors (391077545979).

1030120201221 is a wasteful number, since it uses less digits than its factorization.

1030120201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852508.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1030120201221 its reverse (1221020210301), we get a palindrome (2251140411522).

The spelling of 1030120201221 in words is "one trillion, thirty billion, one hundred twenty million, two hundred one thousand, two hundred twenty-one".