10120231221 has 8 divisors (see below), whose sum is σ = 13514308320. Its totient is φ = 6736487472.

The previous prime is 10120231217. The next prime is 10120231273. The reversal of 10120231221 is 12213202101.

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

It is not a de Polignac number, because 10120231221 - 2² = 10120231217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10120231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120231021) 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, 2581051 + ... + 2584968.

It is an arithmetic number, because the mean of its divisors is an integer number (1689288540).

Almost surely, 2^10120231221 is an apocalyptic number.

It is an amenable number.

10120231221 is a deficient number, since it is larger than the sum of its proper divisors (3394077099).

10120231221 is an equidigital number, since it uses as much as digits as its factorization.

10120231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166675.

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

Adding to 10120231221 its reverse (12213202101), we get a palindrome (22333433322).

The spelling of 10120231221 in words is "ten billion, one hundred twenty million, two hundred thirty-one thousand, two hundred twenty-one".