10221321132221 has 8 divisors (see below), whose sum is σ = 10332315312000. Its totient is φ = 10110640054320.

The previous prime is 10221321132193. The next prime is 10221321132227. The reversal of 10221321132221 is 12223112312201.

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 10221321132221 - 2²² = 10221316937917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221321132227) 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, 78209825 + ... + 78340406.

It is an arithmetic number, because the mean of its divisors is an integer number (1291539414000).

Almost surely, 2^{10221321132221} is an apocalyptic number.

It is an amenable number.

10221321132221 is a deficient number, since it is larger than the sum of its proper divisors (110994179779).

10221321132221 is a wasteful number, since it uses less digits than its factorization.

10221321132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156550939.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 10221321132221 its reverse (12223112312201), we get a palindrome (22444433444422).

The spelling of 10221321132221 in words is "ten trillion, two hundred twenty-one billion, three hundred twenty-one million, one hundred thirty-two thousand, two hundred twenty-one".