220229629 has 2 divisors, whose sum is σ = 220229630. Its totient is φ = 220229628.

The previous prime is 220229533. The next prime is 220229651. The reversal of 220229629 is 926922022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218241529 + 1988100 = 14773^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 220229629 - 2¹⁵ = 220196861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220229594 and 220229603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220229029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110114814 + 110114815.

It is an arithmetic number, because the mean of its divisors is an integer number (110114815).

Almost surely, 2^220229629 is an apocalyptic number.

It is an amenable number.

220229629 is a deficient number, since it is larger than the sum of its proper divisors (1).

220229629 is an equidigital number, since it uses as much as digits as its factorization.

220229629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 220229629 is about 14840.1357473576. The cubic root of 220229629 is about 603.8910350119.

The spelling of 220229629 in words is "two hundred twenty million, two hundred twenty-nine thousand, six hundred twenty-nine".