122220205 has 16 divisors (see below), whose sum is σ = 148236480. Its totient is φ = 96735232.

The previous prime is 122220199. The next prime is 122220209. The reversal of 122220205 is 502022221.

It is a cyclic number.

It is not a de Polignac number, because 122220205 - 2¹⁷ = 122089133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291486 + ... + 291904.

It is an arithmetic number, because the mean of its divisors is an integer number (9264780).

Almost surely, 2^122220205 is an apocalyptic number.

It is an amenable number.

122220205 is a deficient number, since it is larger than the sum of its proper divisors (26016275).

122220205 is a wasteful number, since it uses less digits than its factorization.

122220205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 122220205 is about 11055.3247351672. The cubic root of 122220205 is about 496.2657874075.

Adding to 122220205 its reverse (502022221), we get a palindrome (624242426).

The spelling of 122220205 in words is "one hundred twenty-two million, two hundred twenty thousand, two hundred five".