22220111012087 has 2 divisors, whose sum is σ = 22220111012088. Its totient is φ = 22220111012086.

The previous prime is 22220111012083. The next prime is 22220111012123. The reversal of 22220111012087 is 78021011102222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220111012087 - 2² = 22220111012083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220111012083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110055506043 + 11110055506044.

It is an arithmetic number, because the mean of its divisors is an integer number (11110055506044).

Almost surely, 2^{22220111012087} is an apocalyptic number.

22220111012087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220111012087 is an equidigital number, since it uses as much as digits as its factorization.

22220111012087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The spelling of 22220111012087 in words is "twenty-two trillion, two hundred twenty billion, one hundred eleven million, twelve thousand, eighty-seven".