222130999 has 2 divisors, whose sum is σ = 222131000. Its totient is φ = 222130998.

The previous prime is 222130973. The next prime is 222131023. The reversal of 222130999 is 999031222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222130999 - 2⁷ = 222130871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222130939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065499 + 111065500.

It is an arithmetic number, because the mean of its divisors is an integer number (111065500).

Almost surely, 2^222130999 is an apocalyptic number.

222130999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222130999 is an equidigital number, since it uses as much as digits as its factorization.

222130999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 222130999 is about 14904.0598160367. The cubic root of 222130999 is about 605.6239711359.

The spelling of 222130999 in words is "two hundred twenty-two million, one hundred thirty thousand, nine hundred ninety-nine".