10211311221029 has 2 divisors, whose sum is σ = 10211311221030. Its totient is φ = 10211311221028.

The previous prime is 10211311220941. The next prime is 10211311221049. The reversal of 10211311221029 is 92012211311201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9105921830404 + 1105389390625 = 3017602^2 + 1051375^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211311221029 - 2¹² = 10211311216933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10211311220989 and 10211311221007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211311221049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105655610514 + 5105655610515.

It is an arithmetic number, because the mean of its divisors is an integer number (5105655610515).

Almost surely, 2^{10211311221029} is an apocalyptic number.

It is an amenable number.

10211311221029 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211311221029 is an equidigital number, since it uses as much as digits as its factorization.

10211311221029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 10211311221029 in words is "ten trillion, two hundred eleven billion, three hundred eleven million, two hundred twenty-one thousand, twenty-nine".