10020111210077 has 2 divisors, whose sum is σ = 10020111210078. Its totient is φ = 10020111210076.

The previous prime is 10020111209993. The next prime is 10020111210089. The reversal of 10020111210077 is 77001211102001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9918537695641 + 101573514436 = 3149371^2 + 318706^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020111210077 - 2¹⁶ = 10020111144541 is a prime.

It is a super-2 number, since 2×10020111210077² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020111212077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010055605038 + 5010055605039.

It is an arithmetic number, because the mean of its divisors is an integer number (5010055605039).

Almost surely, 2^{10020111210077} is an apocalyptic number.

It is an amenable number.

10020111210077 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020111210077 is an equidigital number, since it uses as much as digits as its factorization.

10020111210077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 23.

Adding to 10020111210077 its reverse (77001211102001), we get a palindrome (87021322312078).

The spelling of 10020111210077 in words is "ten trillion, twenty billion, one hundred eleven million, two hundred ten thousand, seventy-seven".