220209078629 has 2 divisors, whose sum is σ = 220209078630. Its totient is φ = 220209078628.

The previous prime is 220209078601. The next prime is 220209078643. The reversal of 220209078629 is 926870902022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204765300100 + 15443778529 = 452510^2 + 124273^2 .

It is a cyclic number.

It is not a de Polignac number, because 220209078629 - 2⁸ = 220209078373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220209071629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110104539314 + 110104539315.

It is an arithmetic number, because the mean of its divisors is an integer number (110104539315).

Almost surely, 2^220209078629 is an apocalyptic number.

It is an amenable number.

220209078629 is a deficient number, since it is larger than the sum of its proper divisors (1).

220209078629 is an equidigital number, since it uses as much as digits as its factorization.

220209078629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 220209078629 in words is "two hundred twenty billion, two hundred nine million, seventy-eight thousand, six hundred twenty-nine".