122220121101 has 16 divisors (see below), whose sum is σ = 175597509696. Its totient is φ = 75168688896.

The previous prime is 122220121099. The next prime is 122220121117. The reversal of 122220121101 is 101121022221.

It is not a de Polignac number, because 122220121101 - 2¹ = 122220121099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220121151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842220 + ... + 976613.

It is an arithmetic number, because the mean of its divisors is an integer number (10974844356).

Almost surely, 2^122220121101 is an apocalyptic number.

It is an amenable number.

122220121101 is a deficient number, since it is larger than the sum of its proper divisors (53377388595).

122220121101 is a wasteful number, since it uses less digits than its factorization.

122220121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820572.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122220121101 its reverse (101121022221), we get a palindrome (223341143322).

The spelling of 122220121101 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".