2219213831 has 2 divisors, whose sum is σ = 2219213832. Its totient is φ = 2219213830.

The previous prime is 2219213809. The next prime is 2219213849. The reversal of 2219213831 is 1383129122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219213831 - 2⁶ = 2219213767 is a prime.

It is a super-2 number, since 2×2219213831² = 9849820055403393122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2219210831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109606915 + 1109606916.

It is an arithmetic number, because the mean of its divisors is an integer number (1109606916).

Almost surely, 2^2219213831 is an apocalyptic number.

2219213831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219213831 is an equidigital number, since it uses as much as digits as its factorization.

2219213831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 2219213831 is about 47108.5324649368. The cubic root of 2219213831 is about 1304.3667417833.

The spelling of 2219213831 in words is "two billion, two hundred nineteen million, two hundred thirteen thousand, eight hundred thirty-one".