101231221213 has 8 divisors (see below), whose sum is σ = 101978886240. Its totient is φ = 100483833360.

The previous prime is 101231221211. The next prime is 101231221241. The reversal of 101231221213 is 312122132101.

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

It is a cyclic number.

It is not a de Polignac number, because 101231221213 - 2¹ = 101231221211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694818 + ... + 827788.

It is an arithmetic number, because the mean of its divisors is an integer number (12747360780).

Almost surely, 2^101231221213 is an apocalyptic number.

It is an amenable number.

101231221213 is a deficient number, since it is larger than the sum of its proper divisors (747665027).

101231221213 is a wasteful number, since it uses less digits than its factorization.

101231221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138587.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101231221213 its reverse (312122132101), we get a palindrome (413353353314).

The spelling of 101231221213 in words is "one hundred one billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred thirteen".