222500407 has 2 divisors, whose sum is σ = 222500408. Its totient is φ = 222500406.

The previous prime is 222500389. The next prime is 222500429. The reversal of 222500407 is 704005222.

222500407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (222500429) can be obtained adding 222500407 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222500407 - 2¹⁹ = 221976119 is a prime.

It is a super-2 number, since 2×222500407² = 99012862230331298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222500207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111250203 + 111250204.

It is an arithmetic number, because the mean of its divisors is an integer number (111250204).

Almost surely, 2^222500407 is an apocalyptic number.

222500407 is a deficient number, since it is larger than the sum of its proper divisors (1).

222500407 is an equidigital number, since it uses as much as digits as its factorization.

222500407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 222500407 is about 14916.4475328411. The cubic root of 222500407 is about 605.9595065290.

Adding to 222500407 its reverse (704005222), we get a palindrome (926505629).

The spelling of 222500407 in words is "two hundred twenty-two million, five hundred thousand, four hundred seven".