22220019691 has 2 divisors, whose sum is σ = 22220019692. Its totient is φ = 22220019690.

The previous prime is 22220019673. The next prime is 22220019743. The reversal of 22220019691 is 19691002222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220019691 - 2⁹ = 22220019179 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220019631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110009845 + 11110009846.

It is an arithmetic number, because the mean of its divisors is an integer number (11110009846).

Almost surely, 2^22220019691 is an apocalyptic number.

22220019691 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220019691 is an equidigital number, since it uses as much as digits as its factorization.

22220019691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 22220019691 in words is "twenty-two billion, two hundred twenty million, nineteen thousand, six hundred ninety-one".