218441099 has 2 divisors, whose sum is σ = 218441100. Its totient is φ = 218441098.

The previous prime is 218441057. The next prime is 218441107. The reversal of 218441099 is 990144812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218441099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (218441029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109220549 + 109220550.

It is an arithmetic number, because the mean of its divisors is an integer number (109220550).

Almost surely, 2^218441099 is an apocalyptic number.

218441099 is a deficient number, since it is larger than the sum of its proper divisors (1).

218441099 is an equidigital number, since it uses as much as digits as its factorization.

218441099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 218441099 is about 14779.7530087617. The cubic root of 218441099 is about 602.2518151602.

The spelling of 218441099 in words is "two hundred eighteen million, four hundred forty-one thousand, ninety-nine".