2420221019 has 2 divisors, whose sum is σ = 2420221020. Its totient is φ = 2420221018.

The previous prime is 2420221009. The next prime is 2420221033. The reversal of 2420221019 is 9101220242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2420221019 - 2²⁴ = 2403443803 is a prime.

It is a super-2 number, since 2×2420221019² = 11714939561618796722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2420220985 and 2420221003.

It is not a weakly prime, because it can be changed into another prime (2420221009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210110509 + 1210110510.

It is an arithmetic number, because the mean of its divisors is an integer number (1210110510).

Almost surely, 2^2420221019 is an apocalyptic number.

2420221019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420221019 is an equidigital number, since it uses as much as digits as its factorization.

2420221019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2420221019 is about 49195.7418787439. The cubic root of 2420221019 is about 1342.6155601958.

The spelling of 2420221019 in words is "two billion, four hundred twenty million, two hundred twenty-one thousand, nineteen".