10021069861 has 8 divisors (see below), whose sum is σ = 10946526624. Its totient is φ = 9098021520.

The previous prime is 10021069843. The next prime is 10021069871. The reversal of 10021069861 is 16896012001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10021069861 - 2⁷ = 10021069733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021069811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593395 + ... + 610048.

It is an arithmetic number, because the mean of its divisors is an integer number (1368315828).

Almost surely, 2^10021069861 is an apocalyptic number.

10021069861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021069861 is a deficient number, since it is larger than the sum of its proper divisors (925456763).

10021069861 is a wasteful number, since it uses less digits than its factorization.

10021069861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204211.

The product of its (nonzero) digits is 5184, while the sum is 34.

It can be divided in two parts, 100210 and 69861, that added together give a palindrome (170071).

The spelling of 10021069861 in words is "ten billion, twenty-one million, sixty-nine thousand, eight hundred sixty-one".