101211230101 has 2 divisors, whose sum is σ = 101211230102. Its totient is φ = 101211230100.

The previous prime is 101211230083. The next prime is 101211230117. The reversal of 101211230101 is 101032112101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90832918225 + 10378311876 = 301385^2 + 101874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101211230101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211236101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605615050 + 50605615051.

It is an arithmetic number, because the mean of its divisors is an integer number (50605615051).

Almost surely, 2^101211230101 is an apocalyptic number.

It is an amenable number.

101211230101 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211230101 is an equidigital number, since it uses as much as digits as its factorization.

101211230101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101211230101 its reverse (101032112101), we get a palindrome (202243342202).

The spelling of 101211230101 in words is "one hundred one billion, two hundred eleven million, two hundred thirty thousand, one hundred one".