22102321987 has 2 divisors, whose sum is σ = 22102321988. Its totient is φ = 22102321986.

The previous prime is 22102321981. The next prime is 22102322003. The reversal of 22102321987 is 78912320122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22102321987 - 2¹⁵ = 22102289219 is a prime.

It is not a weakly prime, because it can be changed into another prime (22102321981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051160993 + 11051160994.

It is an arithmetic number, because the mean of its divisors is an integer number (11051160994).

Almost surely, 2^22102321987 is an apocalyptic number.

22102321987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102321987 is an equidigital number, since it uses as much as digits as its factorization.

22102321987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 22102321987 in words is "twenty-two billion, one hundred two million, three hundred twenty-one thousand, nine hundred eighty-seven".