1221104431041 has 8 divisors (see below), whose sum is σ = 1776151899744. Its totient is φ = 740063291520.

The previous prime is 1221104430991. The next prime is 1221104431067. The reversal of 1221104431041 is 1401344011221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1221104431041 - 2¹⁰ = 1221104430017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221104411041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501582256 + ... + 18501582321.

It is an arithmetic number, because the mean of its divisors is an integer number (222018987468).

Almost surely, 2^{1221104431041} is an apocalyptic number.

1221104431041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1221104431041 is a deficient number, since it is larger than the sum of its proper divisors (555047468703).

1221104431041 is a wasteful number, since it uses less digits than its factorization.

1221104431041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37003164591.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1221104431041 its reverse (1401344011221), we get a palindrome (2622448442262).

The spelling of 1221104431041 in words is "one trillion, two hundred twenty-one billion, one hundred four million, four hundred thirty-one thousand, forty-one".