10000001222021 has 8 divisors (see below), whose sum is σ = 10514438725824. Its totient is φ = 9492201621760.

The previous prime is 10000001221937. The next prime is 10000001222027. The reversal of 10000001222021 is 12022210000001.

It is a happy number.

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 10000001222021 - 2³⁸ = 9725123315077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000001221993 and 10000001222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000001222027) 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 7 ways as a sum of consecutive naturals, for example, 1659472796 + ... + 1659478821.

It is an arithmetic number, because the mean of its divisors is an integer number (1314304840728).

Almost surely, 2^{10000001222021} is an apocalyptic number.

It is an amenable number.

10000001222021 is a deficient number, since it is larger than the sum of its proper divisors (514437503803).

10000001222021 is a wasteful number, since it uses less digits than its factorization.

10000001222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318951771.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10000001222021 its reverse (12022210000001), we get a palindrome (22022211222022).

The spelling of 10000001222021 in words is "ten trillion, one million, two hundred twenty-two thousand, twenty-one".