10101300021 has 16 divisors (see below), whose sum is σ = 14999627520. Its totient is φ = 6718567680.

The previous prime is 10101299951. The next prime is 10101300031. The reversal of 10101300021 is 12000310101.

10101300021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10101300021 - 2¹⁴ = 10101283637 is a prime.

It is a super-2 number, since 2×10101300021² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10101299976 and 10101300012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101300031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422380 + ... + 445653.

It is an arithmetic number, because the mean of its divisors is an integer number (937476720).

Almost surely, 2^10101300021 is an apocalyptic number.

It is an amenable number.

10101300021 is a deficient number, since it is larger than the sum of its proper divisors (4898327499).

10101300021 is an equidigital number, since it uses as much as digits as its factorization.

10101300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868473 (or 868467 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 10101300021 its reverse (12000310101), we get a palindrome (22101610122).

It can be divided in two parts, 1010 and 1300021, that added together give a palindrome (1301031).

The spelling of 10101300021 in words is "ten billion, one hundred one million, three hundred thousand, twenty-one".