1212522412224 has 28 divisors (see below), whose sum is σ = 3208132216184. Its totient is φ = 404174137344.

The previous prime is 1212522412223. The next prime is 1212522412229. The reversal of 1212522412224 is 4222142252121.

It is a junction number, because it is equal to n+sod(n) for n = 1212522412191 and 1212522412200.

It is not an unprimeable number, because it can be changed into a prime (1212522412223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157610257 + ... + 3157610640.

It is an arithmetic number, because the mean of its divisors is an integer number (114576150578).

Almost surely, 2^{1212522412224} is an apocalyptic number.

It is an amenable number.

1212522412224 is an abundant number, since it is smaller than the sum of its proper divisors (1995609803960).

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

1212522412224 is an equidigital number, since it uses as much as digits as its factorization.

1212522412224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315220912 (or 6315220902 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

Adding to 1212522412224 its reverse (4222142252121), we get a palindrome (5434664664345).

The spelling of 1212522412224 in words is "one trillion, two hundred twelve billion, five hundred twenty-two million, four hundred twelve thousand, two hundred twenty-four".