10021898810450 has 18 divisors (see below), whose sum is σ = 18640773423909. Its totient is φ = 4008750570120.

The previous prime is 10021898810449. The next prime is 10021898810459. The reversal of 10021898810450 is 5401889812001.

It can be written as a sum of positive squares in 2 ways, for example, as 9821460834241 + 200437976209 = 3133921^2 + 447703^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2238515.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021898810395 and 10021898810404.

It is not an unprimeable number, because it can be changed into a prime (10021898810459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22161299 + ... + 22609001.

Almost surely, 2^{10021898810450} is an apocalyptic number.

10021898810450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021898810450 is a deficient number, since it is larger than the sum of its proper divisors (8618874613459).

10021898810450 is an frugal number, since it uses more digits than its factorization.

10021898810450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895418 (or 447710 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 47.

The spelling of 10021898810450 in words is "ten trillion, twenty-one billion, eight hundred ninety-eight million, eight hundred ten thousand, four hundred fifty".