222139207 has 2 divisors, whose sum is σ = 222139208. Its totient is φ = 222139206.

The previous prime is 222139201. The next prime is 222139213. The reversal of 222139207 is 702931222.

It is a balanced prime because it is at equal distance from previous prime (222139201) and next prime (222139213).

It is a cyclic number.

It is not a de Polignac number, because 222139207 - 2⁷ = 222139079 is a prime.

It is equal to p_12233872 and since 222139207 and 12233872 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222139201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111069603 + 111069604.

It is an arithmetic number, because the mean of its divisors is an integer number (111069604).

Almost surely, 2^222139207 is an apocalyptic number.

222139207 is a deficient number, since it is larger than the sum of its proper divisors (1).

222139207 is an equidigital number, since it uses as much as digits as its factorization.

222139207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 222139207 is about 14904.3351747067. The cubic root of 222139207 is about 605.6314305485.

The spelling of 222139207 in words is "two hundred twenty-two million, one hundred thirty-nine thousand, two hundred seven".