10231012221 has 8 divisors (see below), whose sum is σ = 13646934144. Its totient is φ = 6817882560.

The previous prime is 10231012189. The next prime is 10231012229. The reversal of 10231012221 is 12221013201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10231012221 - 2⁵ = 10231012189 is a prime.

It is a super-2 number, since 2×10231012221² (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 10231012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231012229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689500 + ... + 704181.

It is an arithmetic number, because the mean of its divisors is an integer number (1705866768).

Almost surely, 2^10231012221 is an apocalyptic number.

It is an amenable number.

10231012221 is a deficient number, since it is larger than the sum of its proper divisors (3415921923).

10231012221 is a wasteful number, since it uses less digits than its factorization.

10231012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396131.

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

Adding to 10231012221 its reverse (12221013201), we get a palindrome (22452025422).

The spelling of 10231012221 in words is "ten billion, two hundred thirty-one million, twelve thousand, two hundred twenty-one".