10021119748866 has 36 divisors (see below), whose sum is σ = 21762927126486. Its totient is φ = 3332621851680.

The previous prime is 10021119748729. The next prime is 10021119748867. The reversal of 10021119748866 is 66884791112001.

10021119748866 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 1 + 11 + 97 + 488 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9509853278025 + 511266470841 = 3083805^2 + 715029^2 .

It is a super-2 number, since 2×10021119748866² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10021119748867) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1845190 + ... + 4842206.

Almost surely, 2^{10021119748866} is an apocalyptic number.

10021119748866 is an abundant number, since it is smaller than the sum of its proper divisors (11741807377620).

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

10021119748866 is an equidigital number, since it uses as much as digits as its factorization.

10021119748866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997887 (or 2997453 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 10021119748866 in words is "ten trillion, twenty-one billion, one hundred nineteen million, seven hundred forty-eight thousand, eight hundred sixty-six".