2210218987 has 2 divisors, whose sum is σ = 2210218988. Its totient is φ = 2210218986.

The previous prime is 2210218979. The next prime is 2210218991. The reversal of 2210218987 is 7898120122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2210218987 - 2³ = 2210218979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210218487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105109493 + 1105109494.

It is an arithmetic number, because the mean of its divisors is an integer number (1105109494).

Almost surely, 2^2210218987 is an apocalyptic number.

2210218987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210218987 is an equidigital number, since it uses as much as digits as its factorization.

2210218987 is an evil number, because the sum of its binary digits is even.

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

The square root of 2210218987 is about 47012.9661582845. The cubic root of 2210218987 is about 1302.6020834541.

The spelling of 2210218987 in words is "two billion, two hundred ten million, two hundred eighteen thousand, nine hundred eighty-seven".