101211224077 has 2 divisors, whose sum is σ = 101211224078. Its totient is φ = 101211224076.

The previous prime is 101211224041. The next prime is 101211224111. The reversal of 101211224077 is 770422112101.

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., 76205810916 + 25005413161 = 276054^2 + 158131^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211224077 - 2¹⁹ = 101210699789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211224017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605612038 + 50605612039.

It is an arithmetic number, because the mean of its divisors is an integer number (50605612039).

Almost surely, 2^101211224077 is an apocalyptic number.

It is an amenable number.

101211224077 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211224077 is an equidigital number, since it uses as much as digits as its factorization.

101211224077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 28.

Adding to 101211224077 its reverse (770422112101), we get a palindrome (871633336178).

The spelling of 101211224077 in words is "one hundred one billion, two hundred eleven million, two hundred twenty-four thousand, seventy-seven".