22435322381 has 2 divisors, whose sum is σ = 22435322382. Its totient is φ = 22435322380.

The previous prime is 22435322347. The next prime is 22435322389. The reversal of 22435322381 is 18322353422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22190869156 + 244453225 = 148966^2 + 15635^2 .

It is a cyclic number.

It is not a de Polignac number, because 22435322381 - 2¹⁰ = 22435321357 is a prime.

It is a super-2 number, since 2×22435322381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22435322389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11217661190 + 11217661191.

It is an arithmetic number, because the mean of its divisors is an integer number (11217661191).

Almost surely, 2^22435322381 is an apocalyptic number.

It is an amenable number.

22435322381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22435322381 is an equidigital number, since it uses as much as digits as its factorization.

22435322381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The spelling of 22435322381 in words is "twenty-two billion, four hundred thirty-five million, three hundred twenty-two thousand, three hundred eighty-one".