10000122021 has 12 divisors (see below), whose sum is σ = 14469235872. Its totient is φ = 6655387176.

The previous prime is 10000121993. The next prime is 10000122059. The reversal of 10000122021 is 12022100001.

It is not a de Polignac number, because 10000122021 - 2⁷ = 10000121893 is a prime.

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 = 10000121994 and 10000122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000122061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 941161 + ... + 951726.

It is an arithmetic number, because the mean of its divisors is an integer number (1205769656).

Almost surely, 2^10000122021 is an apocalyptic number.

It is an amenable number.

10000122021 is a deficient number, since it is larger than the sum of its proper divisors (4469113851).

10000122021 is a wasteful number, since it uses less digits than its factorization.

10000122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893480 (or 1893477 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10000122021 its reverse (12022100001), we get a palindrome (22022222022).

The spelling of 10000122021 in words is "ten billion, one hundred twenty-two thousand, twenty-one".