10221101331 has 16 divisors (see below), whose sum is σ = 15606240000. Its totient is φ = 5828918688.

The previous prime is 10221101329. The next prime is 10221101339. The reversal of 10221101331 is 13310112201.

It is a happy number.

It is not a de Polignac number, because 10221101331 - 2¹ = 10221101329 is a prime.

It is a super-2 number, since 2×10221101331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221101331.

It is not an unprimeable number, because it can be changed into a prime (10221101339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477216 + ... + 498173.

It is an arithmetic number, because the mean of its divisors is an integer number (975390000).

Almost surely, 2^10221101331 is an apocalyptic number.

10221101331 is a deficient number, since it is larger than the sum of its proper divisors (5385138669).

10221101331 is an equidigital number, since it uses as much as digits as its factorization.

10221101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975898.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10221101331 its reverse (13310112201), we get a palindrome (23531213532).

The spelling of 10221101331 in words is "ten billion, two hundred twenty-one million, one hundred one thousand, three hundred thirty-one".