2219454971 has 2 divisors, whose sum is σ = 2219454972. Its totient is φ = 2219454970.

The previous prime is 2219454967. The next prime is 2219454973. The reversal of 2219454971 is 1794549122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219454971 - 2² = 2219454967 is a prime.

It is a super-2 number, since 2×2219454971² = 9851960736593221682, which contains 22 as substring.

Together with 2219454973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2219454973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109727485 + 1109727486.

It is an arithmetic number, because the mean of its divisors is an integer number (1109727486).

Almost surely, 2^2219454971 is an apocalyptic number.

2219454971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219454971 is an equidigital number, since it uses as much as digits as its factorization.

2219454971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 2219454971 is about 47111.0918043724. The cubic root of 2219454971 is about 1304.4139842797.

The spelling of 2219454971 in words is "two billion, two hundred nineteen million, four hundred fifty-four thousand, nine hundred seventy-one".