1231221410124 has 24 divisors (see below), whose sum is σ = 2872884123648. Its totient is φ = 410402255760.

The previous prime is 1231221410053. The next prime is 1231221410129. The reversal of 1231221410124 is 4210141221321.

It is a junction number, because it is equal to n+sod(n) for n = 1231221410094 and 1231221410103.

It is not an unprimeable number, because it can be changed into a prime (1231221410129) by changing a digit.

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, 525469 + ... + 1654859.

It is an arithmetic number, because the mean of its divisors is an integer number (119703505152).

Almost surely, 2^{1231221410124} is an apocalyptic number.

It is an amenable number.

1231221410124 is an abundant number, since it is smaller than the sum of its proper divisors (1641662713524).

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

1231221410124 is a wasteful number, since it uses less digits than its factorization.

1231221410124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220245 (or 1220243 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1231221410124 its reverse (4210141221321), we get a palindrome (5441362631445).

The spelling of 1231221410124 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-one million, four hundred ten thousand, one hundred twenty-four".