1230301222021 has 4 divisors (see below), whose sum is σ = 1231625551500. Its totient is φ = 1228976892544.

The previous prime is 1230301221997. The next prime is 1230301222181. The reversal of 1230301222021 is 1202221030321.

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 44314881121 + 1185986340900 = 210511^2 + 1089030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230301222021 - 2²⁷ = 1230167004293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230301222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230301222421) 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, 662163346 + ... + 662165203.

It is an arithmetic number, because the mean of its divisors is an integer number (307906387875).

Almost surely, 2^{1230301222021} is an apocalyptic number.

It is an amenable number.

1230301222021 is a deficient number, since it is larger than the sum of its proper divisors (1324329479).

1230301222021 is an equidigital number, since it uses as much as digits as its factorization.

1230301222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324329478.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1230301222021 its reverse (1202221030321), we get a palindrome (2432522252342).

The spelling of 1230301222021 in words is "one trillion, two hundred thirty billion, three hundred one million, two hundred twenty-two thousand, twenty-one".