30222287 has 2 divisors, whose sum is σ = 30222288. Its totient is φ = 30222286.

The previous prime is 30222271. The next prime is 30222301. The reversal of 30222287 is 78222203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30222287 - 2⁴ = 30222271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30222187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111143 + 15111144.

It is an arithmetic number, because the mean of its divisors is an integer number (15111144).

Almost surely, 2^30222287 is an apocalyptic number.

30222287 is a deficient number, since it is larger than the sum of its proper divisors (1).

30222287 is an equidigital number, since it uses as much as digits as its factorization.

30222287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30222287 is about 5497.4800590816. The cubic root of 30222287 is about 311.4888044366.

The spelling of 30222287 in words is "thirty million, two hundred twenty-two thousand, two hundred eighty-seven".