1220002019 has 2 divisors, whose sum is σ = 1220002020. Its totient is φ = 1220002018.

The previous prime is 1220001973. The next prime is 1220002031. The reversal of 1220002019 is 9102000221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220002019 - 2⁸ = 1220001763 is a prime.

It is a super-2 number, since 2×1220002019² = 2976809852728152722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220001988 and 1220002006.

It is not a weakly prime, because it can be changed into another prime (1220002039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610001009 + 610001010.

It is an arithmetic number, because the mean of its divisors is an integer number (610001010).

Almost surely, 2^1220002019 is an apocalyptic number.

1220002019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220002019 is an equidigital number, since it uses as much as digits as its factorization.

1220002019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1220002019 is about 34928.5272950349. The cubic root of 1220002019 is about 1068.5303195916.

The spelling of 1220002019 in words is "one billion, two hundred twenty million, two thousand, nineteen".