10221043212331 has 6 divisors (see below), whose sum is σ = 11889784961340. Its totient is φ = 8760894181956.

The previous prime is 10221043212311. The next prime is 10221043212337. The reversal of 10221043212331 is 13321234012201.

It is not a de Polignac number, because 10221043212331 - 2¹⁷ = 10221043081259 is a prime.

It is a super-2 number, since 2×10221043212331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221043212296 and 10221043212305.

It is not an unprimeable number, because it can be changed into a prime (10221043212337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104296359261 + ... + 104296359358.

It is an arithmetic number, because the mean of its divisors is an integer number (1981630826890).

Almost surely, 2^{10221043212331} is an apocalyptic number.

10221043212331 is a deficient number, since it is larger than the sum of its proper divisors (1668741749009).

10221043212331 is an equidigital number, since it uses as much as digits as its factorization.

10221043212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208592718633 (or 208592718626 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 10221043212331 its reverse (13321234012201), we get a palindrome (23542277224532).

The spelling of 10221043212331 in words is "ten trillion, two hundred twenty-one billion, forty-three million, two hundred twelve thousand, three hundred thirty-one".