222106783 has 2 divisors, whose sum is σ = 222106784. Its totient is φ = 222106782.

The previous prime is 222106771. The next prime is 222106813. The reversal of 222106783 is 387601222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222106783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222106733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111053391 + 111053392.

It is an arithmetic number, because the mean of its divisors is an integer number (111053392).

Almost surely, 2^222106783 is an apocalyptic number.

222106783 is a deficient number, since it is larger than the sum of its proper divisors (1).

222106783 is an equidigital number, since it uses as much as digits as its factorization.

222106783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 222106783 is about 14903.2473977989. The cubic root of 222106783 is about 605.6019626167.

The spelling of 222106783 in words is "two hundred twenty-two million, one hundred six thousand, seven hundred eighty-three".