10101001222021 has 4 divisors (see below), whose sum is σ = 10101008620000. Its totient is φ = 10100993824044.

The previous prime is 10101001222003. The next prime is 10101001222129. The reversal of 10101001222021 is 12022210010101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10101001222021 - 2⁷ = 10101001221893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101001221992 and 10101001222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101001222321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989241 + ... + 4602238.

It is an arithmetic number, because the mean of its divisors is an integer number (2525252155000).

Almost surely, 2^{10101001222021} is an apocalyptic number.

It is an amenable number.

10101001222021 is a deficient number, since it is larger than the sum of its proper divisors (7397979).

10101001222021 is an equidigital number, since it uses as much as digits as its factorization.

10101001222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7397978.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10101001222021 its reverse (12022210010101), we get a palindrome (22123211232122).

The spelling of 10101001222021 in words is "ten trillion, one hundred one billion, one million, two hundred twenty-two thousand, twenty-one".