1220401320341 has 16 divisors (see below), whose sum is σ = 1486736179200. Its totient is φ = 978458231088.

The previous prime is 1220401320329. The next prime is 1220401320343. The reversal of 1220401320341 is 1430231040221.

It is a cyclic number.

It is not a de Polignac number, because 1220401320341 - 2³⁸ = 945523413397 is a prime.

It is a super-2 number, since 2×1220401320341² (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 (1220401320343) 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, 58065125 + ... + 58086138.

It is an arithmetic number, because the mean of its divisors is an integer number (92921011200).

Almost surely, 2^{1220401320341} is an apocalyptic number.

It is an amenable number.

1220401320341 is a deficient number, since it is larger than the sum of its proper divisors (266334858859).

1220401320341 is a wasteful number, since it uses less digits than its factorization.

1220401320341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116151368.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1220401320341 its reverse (1430231040221), we get a palindrome (2650632360562).

The spelling of 1220401320341 in words is "one trillion, two hundred twenty billion, four hundred one million, three hundred twenty thousand, three hundred forty-one".