12173040221441 has 16 divisors (see below), whose sum is σ = 13299290833920. Its totient is φ = 11050061132880.

The previous prime is 12173040221431. The next prime is 12173040221491. The reversal of 12173040221441 is 14412204037121.

It is a de Polignac number, because none of the positive numbers 2^k-12173040221441 is a prime.

It is a super-2 number, since 2×12173040221441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12173040221398 and 12173040221407.

It is not an unprimeable number, because it can be changed into a prime (12173040221431) 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, 84912500 + ... + 85055738.

It is an arithmetic number, because the mean of its divisors is an integer number (831205677120).

Almost surely, 2^{12173040221441} is an apocalyptic number.

12173040221441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12173040221441 is a deficient number, since it is larger than the sum of its proper divisors (1126250612479).

12173040221441 is a wasteful number, since it uses less digits than its factorization.

12173040221441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154604.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 12173040221441 its reverse (14412204037121), we get a palindrome (26585244258562).

The spelling of 12173040221441 in words is "twelve trillion, one hundred seventy-three billion, forty million, two hundred twenty-one thousand, four hundred forty-one".