1303122202221 has 16 divisors (see below), whose sum is σ = 1996106416128. Its totient is φ = 740742610800.

The previous prime is 1303122202181. The next prime is 1303122202271. The reversal of 1303122202221 is 1222022213031.

It is not a de Polignac number, because 1303122202221 - 2⁶ = 1303122202157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303122202271) 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, 162439545 + ... + 162447566.

It is an arithmetic number, because the mean of its divisors is an integer number (124756651008).

Almost surely, 2^{1303122202221} is an apocalyptic number.

It is an amenable number.

1303122202221 is a deficient number, since it is larger than the sum of its proper divisors (692984213907).

1303122202221 is a wasteful number, since it uses less digits than its factorization.

1303122202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324887312.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1303122202221 its reverse (1222022213031), we get a palindrome (2525144415252).

The spelling of 1303122202221 in words is "one trillion, three hundred three billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".