1301123203221 has 32 divisors (see below), whose sum is σ = 1845042624000. Its totient is φ = 812764897280.

The previous prime is 1301123203213. The next prime is 1301123203241. The reversal of 1301123203221 is 1223023211031.

It is not a de Polignac number, because 1301123203221 - 2³ = 1301123203213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301123203201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56655181 + ... + 56678141.

It is an arithmetic number, because the mean of its divisors is an integer number (57657582000).

Almost surely, 2^{1301123203221} is an apocalyptic number.

It is an amenable number.

1301123203221 is a deficient number, since it is larger than the sum of its proper divisors (543919420779).

1301123203221 is a wasteful number, since it uses less digits than its factorization.

1301123203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27869.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1301123203221 its reverse (1223023211031), we get a palindrome (2524146414252).

It can be divided in two parts, 130112 and 3203221, that added together give a palindrome (3333333).

The spelling of 1301123203221 in words is "one trillion, three hundred one billion, one hundred twenty-three million, two hundred three thousand, two hundred twenty-one".