2104731220641 has 16 divisors (see below), whose sum is σ = 3221214768000. Its totient is φ = 1197451571328.

The previous prime is 2104731220597. The next prime is 2104731220649. The reversal of 2104731220641 is 1460221374012.

It is not a de Polignac number, because 2104731220641 - 2⁶ = 2104731220577 is a prime.

It is a super-2 number, since 2×2104731220641² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2104731220649) 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, 218827716 + ... + 218837333.

It is an arithmetic number, because the mean of its divisors is an integer number (201325923000).

Almost surely, 2^{2104731220641} is an apocalyptic number.

2104731220641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2104731220641 is a deficient number, since it is larger than the sum of its proper divisors (1116483547359).

2104731220641 is a wasteful number, since it uses less digits than its factorization.

2104731220641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437665288.

The product of its (nonzero) digits is 16128, while the sum is 33.

Adding to 2104731220641 its reverse (1460221374012), we get a palindrome (3564952594653).

The spelling of 2104731220641 in words is "two trillion, one hundred four billion, seven hundred thirty-one million, two hundred twenty thousand, six hundred forty-one".