10121223331 has 4 divisors (see below), whose sum is σ = 10148358352. Its totient is φ = 10094088312.

The previous prime is 10121223323. The next prime is 10121223361. The reversal of 10121223331 is 13332212101.

10121223331 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10121223331 - 2³ = 10121223323 is a prime.

It is a super-2 number, since 2×10121223331² (a number of 21 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 = 10121223299 and 10121223308.

It is not an unprimeable number, because it can be changed into a prime (10121223361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13566951 + ... + 13567696.

It is an arithmetic number, because the mean of its divisors is an integer number (2537089588).

Almost surely, 2^10121223331 is an apocalyptic number.

10121223331 is a deficient number, since it is larger than the sum of its proper divisors (27135021).

10121223331 is an equidigital number, since it uses as much as digits as its factorization.

10121223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27135020.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10121223331 its reverse (13332212101), we get a palindrome (23453435432).

The spelling of 10121223331 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-one".