2122327381 has 2 divisors, whose sum is σ = 2122327382. Its totient is φ = 2122327380.

The previous prime is 2122327343. The next prime is 2122327399. The reversal of 2122327381 is 1837232212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2039335281 + 82992100 = 45159^2 + 9110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122327381 - 2¹¹ = 2122325333 is a prime.

It is a super-2 number, since 2×2122327381² = 9008547024284638322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122321381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061163690 + 1061163691.

It is an arithmetic number, because the mean of its divisors is an integer number (1061163691).

Almost surely, 2^2122327381 is an apocalyptic number.

It is an amenable number.

2122327381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122327381 is an equidigital number, since it uses as much as digits as its factorization.

2122327381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 2122327381 is about 46068.7245427958. The cubic root of 2122327381 is about 1285.1015844232.

Adding to 2122327381 its reverse (1837232212), we get a palindrome (3959559593).

The spelling of 2122327381 in words is "two billion, one hundred twenty-two million, three hundred twenty-seven thousand, three hundred eighty-one".