2124421157744 has 80 divisors (see below), whose sum is σ = 4147360551936. Its totient is φ = 1054175558400.

The previous prime is 2124421157743. The next prime is 2124421157767. The reversal of 2124421157744 is 4477511244212.

It is a junction number, because it is equal to n+sod(n) for n = 2124421157695 and 2124421157704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124421157743) 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, 2257620314 + ... + 2257621254.

Almost surely, 2^{2124421157744} is an apocalyptic number.

It is an amenable number.

2124421157744 is a deficient number, since it is larger than the sum of its proper divisors (2022939394192).

2124421157744 is a wasteful number, since it uses less digits than its factorization.

2124421157744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694 (or 2688 counting only the distinct ones).

The product of its digits is 501760, while the sum is 44.

The spelling of 2124421157744 in words is "two trillion, one hundred twenty-four billion, four hundred twenty-one million, one hundred fifty-seven thousand, seven hundred forty-four".