122001220205 has 8 divisors (see below), whose sum is σ = 155013315192. Its totient is φ = 91859742208.

The previous prime is 122001220157. The next prime is 122001220219. The reversal of 122001220205 is 502022100221.

It can be written as a sum of positive squares in 4 ways, for example, as 51948893929 + 70052326276 = 227923^2 + 264674^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122001220205 - 2³⁶ = 53281743469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717654152 + ... + 717654321.

It is an arithmetic number, because the mean of its divisors is an integer number (19376664399).

Almost surely, 2^122001220205 is an apocalyptic number.

It is an amenable number.

122001220205 is a deficient number, since it is larger than the sum of its proper divisors (33012094987).

122001220205 is a wasteful number, since it uses less digits than its factorization.

122001220205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435308495.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 122001220205 its reverse (502022100221), we get a palindrome (624023320426).

The spelling of 122001220205 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, two hundred five".