1213567124420 has 24 divisors (see below), whose sum is σ = 2912561098944. Its totient is φ = 416080156896.

The previous prime is 1213567124401. The next prime is 1213567124447. The reversal of 1213567124420 is 244217653121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4334168162 + ... + 4334168441.

It is an arithmetic number, because the mean of its divisors is an integer number (121356712456).

Almost surely, 2^{1213567124420} is an apocalyptic number.

1213567124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213567124420 is an abundant number, since it is smaller than the sum of its proper divisors (1698993974524).

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

1213567124420 is a wasteful number, since it uses less digits than its factorization.

1213567124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8668336619 (or 8668336617 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 1213567124420 in words is "one trillion, two hundred thirteen billion, five hundred sixty-seven million, one hundred twenty-four thousand, four hundred twenty".