1822212011 has 2 divisors, whose sum is σ = 1822212012. Its totient is φ = 1822212010.

The previous prime is 1822211999. The next prime is 1822212017. The reversal of 1822212011 is 1102122281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1822212011 - 2¹⁰ = 1822210987 is a prime.

It is a super-2 number, since 2×1822212011² = 6640913226065328242, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1822212017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911106005 + 911106006.

It is an arithmetic number, because the mean of its divisors is an integer number (911106006).

Almost surely, 2^1822212011 is an apocalyptic number.

1822212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822212011 is an equidigital number, since it uses as much as digits as its factorization.

1822212011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1822212011 is about 42687.3753116773. The cubic root of 1822212011 is about 1221.4235847851.

Adding to 1822212011 its reverse (1102122281), we get a palindrome (2924334292).

The spelling of 1822212011 in words is "one billion, eight hundred twenty-two million, two hundred twelve thousand, eleven".