101001221231 has 16 divisors (see below), whose sum is σ = 106837820640. Its totient is φ = 95217615360.

The previous prime is 101001221213. The next prime is 101001221239. The reversal of 101001221231 is 132122100101.

It is not a de Polignac number, because 101001221231 - 2³⁴ = 83821352047 is a prime.

It is a super-2 number, since 2×101001221231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001221239) 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 15 ways as a sum of consecutive naturals, for example, 4114811 + ... + 4139283.

It is an arithmetic number, because the mean of its divisors is an integer number (6677363790).

Almost surely, 2^101001221231 is an apocalyptic number.

101001221231 is a deficient number, since it is larger than the sum of its proper divisors (5836599409).

101001221231 is a wasteful number, since it uses less digits than its factorization.

101001221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25546.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101001221231 its reverse (132122100101), we get a palindrome (233123321332).

The spelling of 101001221231 in words is "one hundred one billion, one million, two hundred twenty-one thousand, two hundred thirty-one".