1021112042426 has 24 divisors (see below), whose sum is σ = 1790180603136. Its totient is φ = 435545412120.

The previous prime is 1021112042417. The next prime is 1021112042497. The reversal of 1021112042426 is 6242402111201.

It is a junction number, because it is equal to n+sod(n) for n = 1021112042395 and 1021112042404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24670106 + ... + 24711461.

It is an arithmetic number, because the mean of its divisors is an integer number (74590858464).

Almost surely, 2^{1021112042426} is an apocalyptic number.

1021112042426 is a deficient number, since it is larger than the sum of its proper divisors (769068560710).

1021112042426 is a wasteful number, since it uses less digits than its factorization.

1021112042426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49381794 (or 49381787 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1021112042426 its reverse (6242402111201), we get a palindrome (7263514153627).

The spelling of 1021112042426 in words is "one trillion, twenty-one billion, one hundred twelve million, forty-two thousand, four hundred twenty-six".