222040999 has 2 divisors, whose sum is σ = 222041000. Its totient is φ = 222040998.

The previous prime is 222040981. The next prime is 222041021. The reversal of 222040999 is 999040222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222040999 - 2¹³ = 222032807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222040979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111020499 + 111020500.

It is an arithmetic number, because the mean of its divisors is an integer number (111020500).

Almost surely, 2^222040999 is an apocalyptic number.

222040999 is a deficient number, since it is larger than the sum of its proper divisors (1).

222040999 is an equidigital number, since it uses as much as digits as its factorization.

222040999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 222040999 is about 14901.0401985902. The cubic root of 222040999 is about 605.5421672744.

The spelling of 222040999 in words is "two hundred twenty-two million, forty thousand, nine hundred ninety-nine".