122222207 has 4 divisors (see below), whose sum is σ = 127536240. Its totient is φ = 116908176.

The previous prime is 122222201. The next prime is 122222209. The reversal of 122222207 is 702222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702222221 = 157 ⋅4472753.

It is a cyclic number.

It is not a de Polignac number, because 122222207 - 2⁶ = 122222143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656982 + ... + 2657027.

It is an arithmetic number, because the mean of its divisors is an integer number (31884060).

Almost surely, 2^122222207 is an apocalyptic number.

122222207 is a deficient number, since it is larger than the sum of its proper divisors (5314033).

122222207 is an equidigital number, since it uses as much as digits as its factorization.

122222207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314032.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 122222207 is about 11055.4152794004. The cubic root of 122222207 is about 496.2684970486.

Adding to 122222207 its reverse (702222221), we get a palindrome (824444428).

The spelling of 122222207 in words is "one hundred twenty-two million, two hundred twenty-two thousand, two hundred seven".