10221000012221 has 8 divisors (see below), whose sum is σ = 10417571771904. Its totient is φ = 10025889753040.

The previous prime is 10221000012107. The next prime is 10221000012241. The reversal of 10221000012221 is 12221000012201.

10221000012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221000012221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221000012196 and 10221000012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221000012241) 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, 365361005 + ... + 365388978.

It is an arithmetic number, because the mean of its divisors is an integer number (1302196471488).

Almost surely, 2^{10221000012221} is an apocalyptic number.

It is an amenable number.

10221000012221 is a deficient number, since it is larger than the sum of its proper divisors (196571759683).

10221000012221 is an equidigital number, since it uses as much as digits as its factorization.

10221000012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730750251.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221000012221 its reverse (12221000012201), we get a palindrome (22442000024422).

The spelling of 10221000012221 in words is "ten trillion, two hundred twenty-one billion, twelve thousand, two hundred twenty-one".