1012221202829 has 2 divisors, whose sum is σ = 1012221202830. Its totient is φ = 1012221202828.

The previous prime is 1012221202819. The next prime is 1012221202847. The reversal of 1012221202829 is 9282021222101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 930597855625 + 81623347204 = 964675^2 + 285698^2 .

It is an emirp because it is prime and its reverse (9282021222101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012221202829 - 2³⁶ = 943501726093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012221202795 and 1012221202804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012221202819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110601414 + 506110601415.

It is an arithmetic number, because the mean of its divisors is an integer number (506110601415).

Almost surely, 2^{1012221202829} is an apocalyptic number.

It is an amenable number.

1012221202829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221202829 is an equidigital number, since it uses as much as digits as its factorization.

1012221202829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 1012221202829 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred two thousand, eight hundred twenty-nine".