101100221231 has 2 divisors, whose sum is σ = 101100221232. Its totient is φ = 101100221230.

The previous prime is 101100221227. The next prime is 101100221251. The reversal of 101100221231 is 132122001101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101100221231 - 2² = 101100221227 is a prime.

It is a super-2 number, since 2×101100221231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101100221251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550110615 + 50550110616.

It is an arithmetic number, because the mean of its divisors is an integer number (50550110616).

Almost surely, 2^101100221231 is an apocalyptic number.

101100221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100221231 is an equidigital number, since it uses as much as digits as its factorization.

101100221231 is an evil number, because the sum of its binary digits is even.

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

Adding to 101100221231 its reverse (132122001101), we get a palindrome (233222222332).

The spelling of 101100221231 in words is "one hundred one billion, one hundred million, two hundred twenty-one thousand, two hundred thirty-one".