10221203121331 has 4 divisors (see below), whose sum is σ = 10221379070464. Its totient is φ = 10221027172200.

The previous prime is 10221203121313. The next prime is 10221203121343. The reversal of 10221203121331 is 13312130212201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221203121331 - 2¹⁷ = 10221202990259 is a prime.

It is a super-2 number, since 2×10221203121331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221203122331) 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, 87887400 + ... + 88003621.

It is an arithmetic number, because the mean of its divisors is an integer number (2555344767616).

Almost surely, 2^{10221203121331} is an apocalyptic number.

10221203121331 is a deficient number, since it is larger than the sum of its proper divisors (175949133).

10221203121331 is an equidigital number, since it uses as much as digits as its factorization.

10221203121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175949132.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10221203121331 its reverse (13312130212201), we get a palindrome (23533333333532).

The spelling of 10221203121331 in words is "ten trillion, two hundred twenty-one billion, two hundred three million, one hundred twenty-one thousand, three hundred thirty-one".