22031119987 has 2 divisors, whose sum is σ = 22031119988. Its totient is φ = 22031119986.

The previous prime is 22031119969. The next prime is 22031120011. The reversal of 22031119987 is 78991113022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22031119987 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031117987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015559993 + 11015559994.

It is an arithmetic number, because the mean of its divisors is an integer number (11015559994).

Almost surely, 2^22031119987 is an apocalyptic number.

22031119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031119987 is an equidigital number, since it uses as much as digits as its factorization.

22031119987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 22031119987 in words is "twenty-two billion, thirty-one million, one hundred nineteen thousand, nine hundred eighty-seven".