10231210221 has 16 divisors (see below), whose sum is σ = 14314268160. Its totient is φ = 6487793840.

The previous prime is 10231210201. The next prime is 10231210261. The reversal of 10231210221 is 12201213201.

It is a cyclic number.

It is not a de Polignac number, because 10231210221 - 2¹³ = 10231202029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10231210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231210201) 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, 401835 + ... + 426536.

It is an arithmetic number, because the mean of its divisors is an integer number (894641760).

Almost surely, 2^10231210221 is an apocalyptic number.

It is an amenable number.

10231210221 is a deficient number, since it is larger than the sum of its proper divisors (4083057939).

10231210221 is a wasteful number, since it uses less digits than its factorization.

10231210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828576.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10231210221 its reverse (12201213201), we get a palindrome (22432423422).

The spelling of 10231210221 in words is "ten billion, two hundred thirty-one million, two hundred ten thousand, two hundred twenty-one".