2120221103029 has 2 divisors, whose sum is σ = 2120221103030. Its totient is φ = 2120221103028.

The previous prime is 2120221102981. The next prime is 2120221103057. The reversal of 2120221103029 is 9203011220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1557758602404 + 562462500625 = 1248102^2 + 749975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120221103029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120221102994 and 2120221103012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120221103629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060110551514 + 1060110551515.

It is an arithmetic number, because the mean of its divisors is an integer number (1060110551515).

Almost surely, 2^{2120221103029} is an apocalyptic number.

It is an amenable number.

2120221103029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120221103029 is an equidigital number, since it uses as much as digits as its factorization.

2120221103029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 2120221103029 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred three thousand, twenty-nine".