10021211100221 has 8 divisors (see below), whose sum is σ = 10064805932160. Its totient is φ = 9977691628528.

The previous prime is 10021211100217. The next prime is 10021211100269. The reversal of 10021211100221 is 12200111212001.

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 10021211100221 - 2² = 10021211100217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021211100196 and 10021211100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021211100421) 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, 18573521 + ... + 19105446.

It is an arithmetic number, because the mean of its divisors is an integer number (1258100741520).

Almost surely, 2^{10021211100221} is an apocalyptic number.

It is an amenable number.

10021211100221 is a deficient number, since it is larger than the sum of its proper divisors (43594831939).

10021211100221 is an equidigital number, since it uses as much as digits as its factorization.

10021211100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37680123.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021211100221 its reverse (12200111212001), we get a palindrome (22221322312222).

The spelling of 10021211100221 in words is "ten trillion, twenty-one billion, two hundred eleven million, one hundred thousand, two hundred twenty-one".