10021321442 has 16 divisors (see below), whose sum is σ = 16405892064. Its totient is φ = 4553100000.

The previous prime is 10021321439. The next prime is 10021321469. The reversal of 10021321442 is 24412312001.

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, 51659 + ... + 150702.

It is an arithmetic number, because the mean of its divisors is an integer number (1025368254).

Almost surely, 2^10021321442 is an apocalyptic number.

10021321442 is a deficient number, since it is larger than the sum of its proper divisors (6384570622).

10021321442 is a wasteful number, since it uses less digits than its factorization.

10021321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204625.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10021321442 its reverse (24412312001), we get a palindrome (34433633443).

The spelling of 10021321442 in words is "ten billion, twenty-one million, three hundred twenty-one thousand, four hundred forty-two".