22021112122987 has 2 divisors, whose sum is σ = 22021112122988. Its totient is φ = 22021112122986.

The previous prime is 22021112122979. The next prime is 22021112123041. The reversal of 22021112122987 is 78922121112022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22021112122987 - 2³ = 22021112122979 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021112182987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010556061493 + 11010556061494.

It is an arithmetic number, because the mean of its divisors is an integer number (11010556061494).

Almost surely, 2^{22021112122987} is an apocalyptic number.

22021112122987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021112122987 is an equidigital number, since it uses as much as digits as its factorization.

22021112122987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 22021112122987 in words is "twenty-two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, nine hundred eighty-seven".