210222199987 has 2 divisors, whose sum is σ = 210222199988. Its totient is φ = 210222199986.

The previous prime is 210222199969. The next prime is 210222200003. The reversal of 210222199987 is 789991222012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210222199987 is a prime.

It is not a weakly prime, because it can be changed into another prime (210222199487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111099993 + 105111099994.

It is an arithmetic number, because the mean of its divisors is an integer number (105111099994).

Almost surely, 2^210222199987 is an apocalyptic number.

210222199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222199987 is an equidigital number, since it uses as much as digits as its factorization.

210222199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 210222199987 in words is "two hundred ten billion, two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred eighty-seven".