1021121534424 has 32 divisors (see below), whose sum is σ = 2552841216000. Its totient is φ = 340368860832.

The previous prime is 1021121534417. The next prime is 1021121534449. The reversal of 1021121534424 is 4244351211201.

It is a junction number, because it is equal to n+sod(n) for n = 1021121534391 and 1021121534400.

It is a congruent number.

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, 1601437 + ... + 2146355.

It is an arithmetic number, because the mean of its divisors is an integer number (79776288000).

Almost surely, 2^{1021121534424} is an apocalyptic number.

It is an amenable number.

1021121534424 is an abundant number, since it is smaller than the sum of its proper divisors (1531719681576).

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

1021121534424 is a wasteful number, since it uses less digits than its factorization.

1021121534424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623007 (or 623003 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 1021121534424 its reverse (4244351211201), we get a palindrome (5265472745625).

The spelling of 1021121534424 in words is "one trillion, twenty-one billion, one hundred twenty-one million, five hundred thirty-four thousand, four hundred twenty-four".