228218051 has 2 divisors, whose sum is σ = 228218052. Its totient is φ = 228218050.

The previous prime is 228218033. The next prime is 228218057. The reversal of 228218051 is 150812822.

It is a happy number.

228218051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228218051 - 2²² = 224023747 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (228218057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114109025 + 114109026.

It is an arithmetic number, because the mean of its divisors is an integer number (114109026).

Almost surely, 2^228218051 is an apocalyptic number.

228218051 is a deficient number, since it is larger than the sum of its proper divisors (1).

228218051 is an equidigital number, since it uses as much as digits as its factorization.

228218051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 228218051 is about 15106.8875351609. The cubic root of 228218051 is about 611.1061636318.

The spelling of 228218051 in words is "two hundred twenty-eight million, two hundred eighteen thousand, fifty-one".