1220814029 has 2 divisors, whose sum is σ = 1220814030. Its totient is φ = 1220814028.

The previous prime is 1220814019. The next prime is 1220814037. The reversal of 1220814029 is 9204180221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123791529 + 97022500 = 33523^2 + 9850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220814029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220813992 and 1220814010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220814019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610407014 + 610407015.

It is an arithmetic number, because the mean of its divisors is an integer number (610407015).

Almost surely, 2^1220814029 is an apocalyptic number.

It is an amenable number.

1220814029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220814029 is an equidigital number, since it uses as much as digits as its factorization.

1220814029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1220814029 is about 34940.1492412382. The cubic root of 1220814029 is about 1068.7673314609.

The spelling of 1220814029 in words is "one billion, two hundred twenty million, eight hundred fourteen thousand, twenty-nine".