2205242123456 has 56 divisors (see below), whose sum is σ = 4481696745504. Its totient is φ = 1076211302400.

The previous prime is 2205242123431. The next prime is 2205242123467. The reversal of 2205242123456 is 6543212425022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029620 + ... + 2338931.

Almost surely, 2^{2205242123456} is an apocalyptic number.

It is an amenable number.

2205242123456 is an abundant number, since it is smaller than the sum of its proper divisors (2276454622048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2205242123456 is a wasteful number, since it uses less digits than its factorization.

2205242123456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368809 (or 3368799 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 2205242123456 its reverse (6543212425022), we get a palindrome (8748454548478).

The spelling of 2205242123456 in words is "two trillion, two hundred five billion, two hundred forty-two million, one hundred twenty-three thousand, four hundred fifty-six".