22101010199987 has 2 divisors, whose sum is σ = 22101010199988. Its totient is φ = 22101010199986.

The previous prime is 22101010199953. The next prime is 22101010200001. The reversal of 22101010199987 is 78999101010122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22101010199987 - 2⁶ = 22101010199923 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101010199887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050505099993 + 11050505099994.

It is an arithmetic number, because the mean of its divisors is an integer number (11050505099994).

Almost surely, 2^{22101010199987} is an apocalyptic number.

22101010199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101010199987 is an equidigital number, since it uses as much as digits as its factorization.

22101010199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 50.

The spelling of 22101010199987 in words is "twenty-two trillion, one hundred one billion, ten million, one hundred ninety-nine thousand, nine hundred eighty-seven".