122221206 has 12 divisors (see below), whose sum is σ = 264812652. Its totient is φ = 40740396.

The previous prime is 122221201. The next prime is 122221207. The reversal of 122221206 is 602122221.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6790067 = 122221206 / (1 + 2 + 2 + 2 + 2 + 1 + 2 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3395016 + ... + 3395051.

It is an arithmetic number, because the mean of its divisors is an integer number (22067721).

Almost surely, 2^122221206 is an apocalyptic number.

122221206 is an abundant number, since it is smaller than the sum of its proper divisors (142591446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122221206 is a wasteful number, since it uses less digits than its factorization.

122221206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790075 (or 6790072 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 122221206 is about 11055.3700073765. The cubic root of 122221206 is about 496.2671422317.

Adding to 122221206 its reverse (602122221), we get a palindrome (724343427).

The spelling of 122221206 in words is "one hundred twenty-two million, two hundred twenty-one thousand, two hundred six".