10121212331 has 8 divisors (see below), whose sum is σ = 10239583200. Its totient is φ = 10003305600.

The previous prime is 10121212319. The next prime is 10121212349. The reversal of 10121212331 is 13321212101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121212331 is a prime.

It is a super-2 number, since 2×10121212331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121212631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72071 + ... + 159488.

It is an arithmetic number, because the mean of its divisors is an integer number (1279947900).

Almost surely, 2^10121212331 is an apocalyptic number.

10121212331 is a deficient number, since it is larger than the sum of its proper divisors (118370869).

10121212331 is a wasteful number, since it uses less digits than its factorization.

10121212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232069.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10121212331 its reverse (13321212101), we get a palindrome (23442424432).

The spelling of 10121212331 in words is "ten billion, one hundred twenty-one million, two hundred twelve thousand, three hundred thirty-one".