1220330029 has 2 divisors, whose sum is σ = 1220330030. Its totient is φ = 1220330028.

The previous prime is 1220330009. The next prime is 1220330039. The reversal of 1220330029 is 9200330221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208952900 + 11377129 = 34770^2 + 3373^2 .

It is an emirp because it is prime and its reverse (9200330221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220330029 - 2²³ = 1211941421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220329991 and 1220330009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220330009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610165014 + 610165015.

It is an arithmetic number, because the mean of its divisors is an integer number (610165015).

Almost surely, 2^1220330029 is an apocalyptic number.

It is an amenable number.

1220330029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220330029 is an equidigital number, since it uses as much as digits as its factorization.

1220330029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1220330029 is about 34933.2224250784. Note that the first 3 decimals coincide. The cubic root of 1220330029 is about 1068.6260727730.

The spelling of 1220330029 in words is "one billion, two hundred twenty million, three hundred thirty thousand, twenty-nine".